12515625912 has 48 divisors (see below), whose sum is σ = 31467233160. Its totient is φ = 4148147136.

The previous prime is 12515625839. The next prime is 12515625919. The reversal of 12515625912 is 21952651521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12515625919) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7691643 + ... + 7693269.

Almost surely, 2^12515625912 is an apocalyptic number.

12515625912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12515625912 is an abundant number, since it is smaller than the sum of its proper divisors (18951607248).

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

12515625912 is an equidigital number, since it uses as much as digits as its factorization.

12515625912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3460 (or 1829 counting only the distinct ones).

The product of its digits is 54000, while the sum is 39.

The spelling of 12515625912 in words is "twelve billion, five hundred fifteen million, six hundred twenty-five thousand, nine hundred twelve".