63913488904 has 16 divisors (see below), whose sum is σ = 123076651500. Its totient is φ = 31093048512.

The previous prime is 63913488887. The next prime is 63913488913. The reversal of 63913488904 is 40988431936.

It can be written as a sum of positive squares in 2 ways, for example, as 48686422500 + 15227066404 = 220650^2 + 123398^2 .

It is a super-2 number, since 2×63913488904² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107961679 + ... + 107962270.

Almost surely, 2^63913488904 is an apocalyptic number.

It is an amenable number.

63913488904 is a deficient number, since it is larger than the sum of its proper divisors (59163162596).

63913488904 is a wasteful number, since it uses less digits than its factorization.

63913488904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215923992 (or 215923988 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 55.

The spelling of 63913488904 in words is "sixty-three billion, nine hundred thirteen million, four hundred eighty-eight thousand, nine hundred four".