12704654128 has 10 divisors (see below), whose sum is σ = 24615267404. Its totient is φ = 6352327056.

The previous prime is 12704654113. The next prime is 12704654173. The reversal of 12704654128 is 82145640721.

It is a super-2 number, since 2×12704654128² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 397020426 + ... + 397020457.

Almost surely, 2^12704654128 is an apocalyptic number.

It is an amenable number.

12704654128 is a deficient number, since it is larger than the sum of its proper divisors (11910613276).

12704654128 is an equidigital number, since it uses as much as digits as its factorization.

12704654128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794040891 (or 794040885 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The spelling of 12704654128 in words is "twelve billion, seven hundred four million, six hundred fifty-four thousand, one hundred twenty-eight".