634959392125 has 32 divisors (see below), whose sum is σ = 834413299200. Its totient is φ = 481072478400.

The previous prime is 634959392099. The next prime is 634959392129. The reversal of 634959392125 is 521293959436.

It is not a de Polignac number, because 634959392125 - 2⁹ = 634959391613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 634959392125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634959392129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7364767 + ... + 7450483.

It is an arithmetic number, because the mean of its divisors is an integer number (26075415600).

Almost surely, 2^634959392125 is an apocalyptic number.

It is an amenable number.

634959392125 is a deficient number, since it is larger than the sum of its proper divisors (199453907075).

634959392125 is a wasteful number, since it uses less digits than its factorization.

634959392125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88870 (or 88860 counting only the distinct ones).

The product of its digits is 15746400, while the sum is 58.

The spelling of 634959392125 in words is "six hundred thirty-four billion, nine hundred fifty-nine million, three hundred ninety-two thousand, one hundred twenty-five".