12758645992 has 32 divisors (see below), whose sum is σ = 24243840000. Its totient is φ = 6293746368.

The previous prime is 12758645959. The next prime is 12758646007. The reversal of 12758645992 is 29954685721.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 902434 + ... + 916462.

It is an arithmetic number, because the mean of its divisors is an integer number (757620000).

Almost surely, 2^12758645992 is an apocalyptic number.

It is an amenable number.

12758645992 is a deficient number, since it is larger than the sum of its proper divisors (11485194008).

12758645992 is a wasteful number, since it uses less digits than its factorization.

12758645992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15553 (or 15549 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 58.

The spelling of 12758645992 in words is "twelve billion, seven hundred fifty-eight million, six hundred forty-five thousand, nine hundred ninety-two".