12787692964 has 12 divisors (see below), whose sum is σ = 22379280588. Its totient is φ = 6393612800.

The previous prime is 12787692947. The next prime is 12787692997. The reversal of 12787692964 is 46929678721.

It can be written as a sum of positive squares in 2 ways, for example, as 4354944064 + 8432748900 = 65992^2 + 91830^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138324 + ... + 211444.

It is an arithmetic number, because the mean of its divisors is an integer number (1864940049).

Almost surely, 2^12787692964 is an apocalyptic number.

It is an amenable number.

12787692964 is a deficient number, since it is larger than the sum of its proper divisors (9591587624).

12787692964 is a wasteful number, since it uses less digits than its factorization.

12787692964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116846 (or 116844 counting only the distinct ones).

The product of its digits is 18289152, while the sum is 61.

The spelling of 12787692964 in words is "twelve billion, seven hundred eighty-seven million, six hundred ninety-two thousand, nine hundred sixty-four".