631603478760 has 64 divisors (see below), whose sum is σ = 1898577636480. Its totient is φ = 168092732160.

The previous prime is 631603478749. The next prime is 631603478801. The reversal of 631603478760 is 67874306136.

It is a super-2 number, since 2×631603478760² (a number of 24 digits) contains 22 as substring.

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 in 15 ways as a sum of consecutive naturals, for example, 5171611 + ... + 5292330.

It is an arithmetic number, because the mean of its divisors is an integer number (29665275570).

Almost surely, 2^631603478760 is an apocalyptic number.

631603478760 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

631603478760 is an abundant number, since it is smaller than the sum of its proper divisors (1266974157720).

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

631603478760 is a wasteful number, since it uses less digits than its factorization.

631603478760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10464458 (or 10464454 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 51.

The spelling of 631603478760 in words is "six hundred thirty-one billion, six hundred three million, four hundred seventy-eight thousand, seven hundred sixty".