631773732460 has 48 divisors (see below), whose sum is σ = 1428961899456. Its totient is φ = 233240700672.

The previous prime is 631773732449. The next prime is 631773732479. The reversal of 631773732460 is 64237377136.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1954057 + ... + 2254303.

It is an arithmetic number, because the mean of its divisors is an integer number (29770039572).

Almost surely, 2^631773732460 is an apocalyptic number.

It is an amenable number.

631773732460 is an abundant number, since it is smaller than the sum of its proper divisors (797188166996).

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

631773732460 is a wasteful number, since it uses less digits than its factorization.

631773732460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308362 (or 308360 counting only the distinct ones).

The product of its (nonzero) digits is 2667168, while the sum is 49.

The spelling of 631773732460 in words is "six hundred thirty-one billion, seven hundred seventy-three million, seven hundred thirty-two thousand, four hundred sixty".