12500013912 has 64 divisors (see below), whose sum is σ = 33108756480. Its totient is φ = 3919145472.

The previous prime is 12500013853. The next prime is 12500013913. The reversal of 12500013912 is 21931000521.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12500013913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 718873 + ... + 736055.

It is an arithmetic number, because the mean of its divisors is an integer number (517324320).

Almost surely, 2^12500013912 is an apocalyptic number.

12500013912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12500013912 is an abundant number, since it is smaller than the sum of its proper divisors (20608742568).

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

12500013912 is a wasteful number, since it uses less digits than its factorization.

12500013912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18992 (or 18988 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 24.

The spelling of 12500013912 in words is "twelve billion, five hundred million, thirteen thousand, nine hundred twelve".