63959664740 has 48 divisors (see below), whose sum is σ = 142811424000. Its totient is φ = 23978153472.

The previous prime is 63959664677. The next prime is 63959664751. The reversal of 63959664740 is 4746695936.

It is a self number, because there is not a number n which added to its sum of digits gives 63959664740.

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, 312290 + ... + 474809.

It is an arithmetic number, because the mean of its divisors is an integer number (2975238000).

Almost surely, 2^63959664740 is an apocalyptic number.

It is an amenable number.

63959664740 is an abundant number, since it is smaller than the sum of its proper divisors (78851759260).

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

63959664740 is a wasteful number, since it uses less digits than its factorization.

63959664740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787364 (or 787362 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 59.

The spelling of 63959664740 in words is "sixty-three billion, nine hundred fifty-nine million, six hundred sixty-four thousand, seven hundred forty".