12651146944 has 28 divisors (see below), whose sum is σ = 25212394584. Its totient is φ = 6298417664.

The previous prime is 12651146939. The next prime is 12651146951. The reversal of 12651146944 is 44964115621.

It is a self number, because there is not a number n which added to its sum of digits gives 12651146944.

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, 409282 + ... + 439105.

Almost surely, 2^12651146944 is an apocalyptic number.

It is an amenable number.

12651146944 is a deficient number, since it is larger than the sum of its proper divisors (12561247640).

12651146944 is an equidigital number, since it uses as much as digits as its factorization.

12651146944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848632 (or 848622 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The spelling of 12651146944 in words is "twelve billion, six hundred fifty-one million, one hundred forty-six thousand, nine hundred forty-four".