631454973194 has 16 divisors (see below), whose sum is σ = 951026184000. Its totient is φ = 314446654464.

The previous prime is 631454973139. The next prime is 631454973221. The reversal of 631454973194 is 491379454136.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3087197 + ... + 3285375.

It is an arithmetic number, because the mean of its divisors is an integer number (59439136500).

Almost surely, 2^631454973194 is an apocalyptic number.

631454973194 is a deficient number, since it is larger than the sum of its proper divisors (319571210806).

631454973194 is a wasteful number, since it uses less digits than its factorization.

631454973194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204637.

The product of its digits is 9797760, while the sum is 56.

The spelling of 631454973194 in words is "six hundred thirty-one billion, four hundred fifty-four million, nine hundred seventy-three thousand, one hundred ninety-four".