12976895988 has 360 divisors, whose sum is σ = 41108820480. Its totient is φ = 3443610240.

The previous prime is 12976895983. The next prime is 12976895999. The reversal of 12976895988 is 88959867921.

12976895988 is a `hidden beast` number, since 1 + 29 + 7 + 6 + 8 + 9 + 598 + 8 = 666.

It is a super-2 number, since 2×12976895988² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12976895983) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 77705881 + ... + 77706047.

It is an arithmetic number, because the mean of its divisors is an integer number (114191168).

Almost surely, 2^12976895988 is an apocalyptic number.

12976895988 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 12976895988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20554410240).

12976895988 is an abundant number, since it is smaller than the sum of its proper divisors (28131924492).

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

12976895988 is a wasteful number, since it uses less digits than its factorization.

12976895988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265 (or 239 counting only the distinct ones).

The product of its digits is 156764160, while the sum is 72.

The spelling of 12976895988 in words is "twelve billion, nine hundred seventy-six million, eight hundred ninety-five thousand, nine hundred eighty-eight".