631375688192 has 20 divisors (see below), whose sum is σ = 1261518221766. Its totient is φ = 315687843840.

The previous prime is 631375688183. The next prime is 631375688257. The reversal of 631375688192 is 291886573136.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 321153423616 + 310222264576 = 566704^2 + 556976^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616577309 + ... + 616578332.

Almost surely, 2^631375688192 is an apocalyptic number.

It is an amenable number.

631375688192 is a deficient number, since it is larger than the sum of its proper divisors (630142533574).

631375688192 is an equidigital number, since it uses as much as digits as its factorization.

631375688192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233155659 (or 1233155643 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 59.

The spelling of 631375688192 in words is "six hundred thirty-one billion, three hundred seventy-five million, six hundred eighty-eight thousand, one hundred ninety-two".