631944500132 has 24 divisors (see below), whose sum is σ = 1234496236512. Its totient is φ = 280567324800.

The previous prime is 631944500059. The next prime is 631944500183. The reversal of 631944500132 is 231005449136.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167002469 + ... + 167006252.

It is an arithmetic number, because the mean of its divisors is an integer number (51437343188).

Almost surely, 2^631944500132 is an apocalyptic number.

It is an amenable number.

631944500132 is a deficient number, since it is larger than the sum of its proper divisors (602551736380).

631944500132 is a wasteful number, since it uses less digits than its factorization.

631944500132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334008779 (or 334008777 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

Adding to 631944500132 its reverse (231005449136), we get a palindrome (862949949268).

The spelling of 631944500132 in words is "six hundred thirty-one billion, nine hundred forty-four million, five hundred thousand, one hundred thirty-two".