12945359976 has 128 divisors (see below), whose sum is σ = 33576898560. Its totient is φ = 4157049600.

The previous prime is 12945359953. The next prime is 12945359983. The reversal of 12945359976 is 67995354921.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26581605 + ... + 26582091.

It is an arithmetic number, because the mean of its divisors is an integer number (262319520).

Almost surely, 2^12945359976 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 12945359976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16788449280).

12945359976 is an abundant number, since it is smaller than the sum of its proper divisors (20631538584).

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

12945359976 is a wasteful number, since it uses less digits than its factorization.

12945359976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895 (or 891 counting only the distinct ones).

The product of its digits is 18370800, while the sum is 60.

The spelling of 12945359976 in words is "twelve billion, nine hundred forty-five million, three hundred fifty-nine thousand, nine hundred seventy-six".