63609926632 has 72 divisors (see below), whose sum is σ = 145036001250. Its totient is φ = 26076033984.

The previous prime is 63609926603. The next prime is 63609926651. The reversal of 63609926632 is 23662990636.

It can be written as a sum of positive squares in only one way, i.e., 60361610596 + 3248316036 = 245686^2 + 56994^2 .

It is a super-2 number, since 2×63609926632² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 63609926632.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 53994 + ... + 360742.

Almost surely, 2^63609926632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63609926632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72518000625).

63609926632 is an abundant number, since it is smaller than the sum of its proper divisors (81426074618).

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

63609926632 is a wasteful number, since it uses less digits than its factorization.

63609926632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306815 (or 306781 counting only the distinct ones).

The product of its (nonzero) digits is 3779136, while the sum is 52.

The spelling of 63609926632 in words is "sixty-three billion, six hundred nine million, nine hundred twenty-six thousand, six hundred thirty-two".