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11946181459968 = 21631273
BaseRepresentation
bin1010110111010110111111…
…1001110000000000000000
31120022001011221000000000000
42231311233321300000000
53031211234423204333
641224000000000000
72342040340662000
oct255655771600000
946261157000000
1011946181459968
11389638aaa8148
12140b300000000
1368869b7c3a22
142d42ac092000
1515ab331eb713
hexadd6fe70000

11946181459968 has 884 divisors, whose sum is σ = 41793875772400. Its totient is φ = 3413194702848.

The previous prime is 11946181459963. The next prime is 11946181460021. The reversal of 11946181459968 is 86995418164911.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

11946181459968 is a `hidden beast` number, since 1 + 1 + 9 + 4 + 6 + 1 + 81 + 459 + 96 + 8 = 666.

It is a super-2 number, since 2×119461814599682 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

Its product of digits (134369280) is a multiple of the sum of its prime divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 11946181459896 and 11946181459905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11946181459963) by changing a digit.

It is a polite number, since it can be written in 51 ways as a sum of consecutive naturals, for example, 1706597351421 + ... + 1706597351427.

Almost surely, 211946181459968 is an apocalyptic number.

11946181459968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11946181459968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20896937886200).

11946181459968 is an abundant number, since it is smaller than the sum of its proper divisors (29847694312432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11946181459968 is an frugal number, since it uses more digits than its factorization.

11946181459968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89 (or 12 counting only the distinct ones).

The product of its digits is 134369280, while the sum is 72.

The spelling of 11946181459968 in words is "eleven trillion, nine hundred forty-six billion, one hundred eighty-one million, four hundred fifty-nine thousand, nine hundred sixty-eight".