63972385508 has 24 divisors (see below), whose sum is σ = 113653663200. Its totient is φ = 31500171648.

The previous prime is 63972385507. The next prime is 63972385523. The reversal of 63972385508 is 80558327936.

It is a super-2 number, since 2×63972385508² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63972385501) by changing a digit.

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, 1011563 + ... + 1072941.

It is an arithmetic number, because the mean of its divisors is an integer number (4735569300).

Almost surely, 2^63972385508 is an apocalyptic number.

It is an amenable number.

63972385508 is a deficient number, since it is larger than the sum of its proper divisors (49681277692).

63972385508 is a wasteful number, since it uses less digits than its factorization.

63972385508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65339 (or 65337 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 56.

The spelling of 63972385508 in words is "sixty-three billion, nine hundred seventy-two million, three hundred eighty-five thousand, five hundred eight".