631446097625 has 16 divisors (see below), whose sum is σ = 900622549632. Its totient is φ = 432991609200.

The previous prime is 631446097609. The next prime is 631446097637. The reversal of 631446097625 is 526790644136.

631446097625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 631446097625 - 2⁴ = 631446097609 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 360825467 + ... + 360827216.

It is an arithmetic number, because the mean of its divisors is an integer number (56288909352).

Almost surely, 2^631446097625 is an apocalyptic number.

It is an amenable number.

631446097625 is a deficient number, since it is larger than the sum of its proper divisors (269176452007).

631446097625 is an equidigital number, since it uses as much as digits as its factorization.

631446097625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721652705 (or 721652695 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 53.

The spelling of 631446097625 in words is "six hundred thirty-one billion, four hundred forty-six million, ninety-seven thousand, six hundred twenty-five".