63746664736 has 24 divisors (see below), whose sum is σ = 132883673580. Its totient is φ = 29998430208.

The previous prime is 63746664701. The next prime is 63746664739.

63746664736 is nontrivially palindromic in base 10.

63746664736 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 63224085136 + 522579600 = 251444^2 + 22860^2 .

It is not an unprimeable number, because it can be changed into a prime (63746664739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58590141 + ... + 58591228.

Almost surely, 2^63746664736 is an apocalyptic number.

It is an amenable number.

63746664736 is an abundant number, since it is smaller than the sum of its proper divisors (69137008844).

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

63746664736 is a wasteful number, since it uses less digits than its factorization.

63746664736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117181396 (or 117181388 counting only the distinct ones).

The product of its digits is 54867456, while the sum is 58.

The spelling of 63746664736 in words is "sixty-three billion, seven hundred forty-six million, six hundred sixty-four thousand, seven hundred thirty-six".