12912625452 has 24 divisors (see below), whose sum is σ = 30218873776. Its totient is φ = 4291435008.

The previous prime is 12912625421. The next prime is 12912625457. The reversal of 12912625452 is 25452621921.

It is a self number, because there is not a number n which added to its sum of digits gives 12912625452.

It is not an unprimeable number, because it can be changed into a prime (12912625457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1592473 + ... + 1600560.

Almost surely, 2^12912625452 is an apocalyptic number.

12912625452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12912625452 is an abundant number, since it is smaller than the sum of its proper divisors (17306248324).

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

12912625452 is a wasteful number, since it uses less digits than its factorization.

12912625452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3193377 (or 3193375 counting only the distinct ones).

The product of its digits is 86400, while the sum is 39.

The spelling of 12912625452 in words is "twelve billion, nine hundred twelve million, six hundred twenty-five thousand, four hundred fifty-two".