625139912634 has 16 divisors (see below), whose sum is σ = 1252230347520. Its totient is φ = 208054883840.

The previous prime is 625139912633. The next prime is 625139912671. The reversal of 625139912634 is 436219931526.

It is not an unprimeable number, because it can be changed into a prime (625139912633) 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, 81267594 + ... + 81275285.

It is an arithmetic number, because the mean of its divisors is an integer number (78264396720).

Almost surely, 2^625139912634 is an apocalyptic number.

625139912634 is an abundant number, since it is smaller than the sum of its proper divisors (627090434886).

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

625139912634 is a wasteful number, since it uses less digits than its factorization.

625139912634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162543525.

The product of its digits is 2099520, while the sum is 51.

The spelling of 625139912634 in words is "six hundred twenty-five billion, one hundred thirty-nine million, nine hundred twelve thousand, six hundred thirty-four".