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12692359680 = 2935711132127
BaseRepresentation
bin10111101001000011…
…00000101000000000
31012202112220200021120
423310201200220000
5201443221002210
65455241152240
7626346164040
oct136441405000
935675820246
1012692359680
115423562760
12256278b680
13127372a400
14885967720
154e4434270
hex2f4860a00

12692359680 has 960 divisors, whose sum is σ = 55210180608. Its totient is φ = 2415329280.

The previous prime is 12692359663. The next prime is 12692359711. The reversal of 12692359680 is 8695329621.

It is a tau number, because it is divible by the number of its divisors (960).

It is a super-2 number, since 2×126923596802 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 99939777 + ... + 99939903.

Almost surely, 212692359680 is an apocalyptic number.

12692359680 is a gapful number since it is divisible by the number (10) 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 12692359680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27605090304).

12692359680 is an abundant number, since it is smaller than the sum of its proper divisors (42517820928).

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

12692359680 is a wasteful number, since it uses less digits than its factorization.

12692359680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 51.

The spelling of 12692359680 in words is "twelve billion, six hundred ninety-two million, three hundred fifty-nine thousand, six hundred eighty".