631699152046900 has 72 divisors (see below), whose sum is σ = 1566766413101120. Its totient is φ = 216561481251840.

The previous prime is 631699152046813. The next prime is 631699152046933. The reversal of 631699152046900 is 9640251996136.

It is a super-2 number, since 2×631699152046900² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36731190 + ... + 51113389.

Almost surely, 2^{631699152046900} is an apocalyptic number.

It is an amenable number.

631699152046900 is an abundant number, since it is smaller than the sum of its proper divisors (935067261054220).

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

631699152046900 is a wasteful number, since it uses less digits than its factorization.

631699152046900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87854873 (or 87854866 counting only the distinct ones).

The product of its (nonzero) digits is 18895680, while the sum is 61.

The spelling of 631699152046900 in words is "six hundred thirty-one trillion, six hundred ninety-nine billion, one hundred fifty-two million, forty-six thousand, nine hundred".