12457612856040 has 64 divisors (see below), whose sum is σ = 40770369351360. Its totient is φ = 3020027358720.

The previous prime is 12457612856021. The next prime is 12457612856077. The reversal of 12457612856040 is 4065821675421.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4718791429 + ... + 4718794068.

It is an arithmetic number, because the mean of its divisors is an integer number (637037021115).

Almost surely, 2^{12457612856040} is an apocalyptic number.

12457612856040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12457612856040 is an abundant number, since it is smaller than the sum of its proper divisors (28312756495320).

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

12457612856040 is a wasteful number, since it uses less digits than its factorization.

12457612856040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9437585522 (or 9437585518 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 51.

The spelling of 12457612856040 in words is "twelve trillion, four hundred fifty-seven billion, six hundred twelve million, eight hundred fifty-six thousand, forty".