635904130125 has 128 divisors (see below), whose sum is σ = 1196151390720. Its totient is φ = 297185280000.

The previous prime is 635904130097. The next prime is 635904130133. The reversal of 635904130125 is 521031409536.

It is not a de Polignac number, because 635904130125 - 2⁵ = 635904130093 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 76675479 + ... + 76683771.

It is an arithmetic number, because the mean of its divisors is an integer number (9344932740).

Almost surely, 2^635904130125 is an apocalyptic number.

It is an amenable number.

635904130125 is a deficient number, since it is larger than the sum of its proper divisors (560247260595).

635904130125 is a wasteful number, since it uses less digits than its factorization.

635904130125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8992 (or 8982 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 39.

The spelling of 635904130125 in words is "six hundred thirty-five billion, nine hundred four million, one hundred thirty thousand, one hundred twenty-five".