631887900619324 has 24 divisors (see below), whose sum is σ = 1105867162805328. Its totient is φ = 315925854773760.

The previous prime is 631887900619319. The next prime is 631887900619379. The reversal of 631887900619324 is 423916009788136.

It is a self number, because there is not a number n which added to its sum of digits gives 631887900619324.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8420531244 + ... + 8420606284.

It is an arithmetic number, because the mean of its divisors is an integer number (46077798450222).

Almost surely, 2^{631887900619324} is an apocalyptic number.

It is an amenable number.

631887900619324 is a deficient number, since it is larger than the sum of its proper divisors (473979262186004).

631887900619324 is a wasteful number, since it uses less digits than its factorization.

631887900619324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167565 (or 167563 counting only the distinct ones).

The product of its (nonzero) digits is 94058496, while the sum is 67.

The spelling of 631887900619324 in words is "six hundred thirty-one trillion, eight hundred eighty-seven billion, nine hundred million, six hundred nineteen thousand, three hundred twenty-four".