63922736568 has 32 divisors (see below), whose sum is σ = 166754966400. Its totient is φ = 20381162208.

The previous prime is 63922736561. The next prime is 63922736587. The reversal of 63922736568 is 86563722936.

It is a super-2 number, since 2×63922736568² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63922736561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57900478 + ... + 57901581.

It is an arithmetic number, because the mean of its divisors is an integer number (5211092700).

Almost surely, 2^63922736568 is an apocalyptic number.

It is an amenable number.

63922736568 is an abundant number, since it is smaller than the sum of its proper divisors (102832229832).

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

63922736568 is a wasteful number, since it uses less digits than its factorization.

63922736568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115802091 (or 115802087 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 57.

The spelling of 63922736568 in words is "sixty-three billion, nine hundred twenty-two million, seven hundred thirty-six thousand, five hundred sixty-eight".