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5279785555968 = 2113147211
BaseRepresentation
bin100110011010100101110…
…1111100001100000000000
3200200202001100000000000000
41030311023233201200000
51143001000100242333
615121300000000000
71053311002514400
oct114651357414000
920622040000000
105279785555968
111756165336870
12713311600000
132c3b5cc74691
14143785d40800
1592515405713
hex4cd4bbe1800

5279785555968 has 1080 divisors, whose sum is σ = 20095499363940. Its totient is φ = 1371372871680.

The previous prime is 5279785555943. The next prime is 5279785556011. The reversal of 5279785555968 is 8695555879725.

5279785555968 is a `hidden beast` number, since 5 + 2 + 7 + 9 + 7 + 8 + 55 + 559 + 6 + 8 = 666.

It is a super-2 number, since 2×52797855559682 (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 479980505083 + ... + 479980505093.

Almost surely, 25279785555968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5279785555968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10047749681970).

5279785555968 is an abundant number, since it is smaller than the sum of its proper divisors (14815713807972).

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

5279785555968 is an frugal number, since it uses more digits than its factorization.

5279785555968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89 (or 23 counting only the distinct ones).

The product of its digits is 9525600000, while the sum is 81.

The spelling of 5279785555968 in words is "five trillion, two hundred seventy-nine billion, seven hundred eighty-five million, five hundred fifty-five thousand, nine hundred sixty-eight".