61630534872432 has 120 divisors (see below), whose sum is σ = 172606326877920. Its totient is φ = 20528457523200.

The previous prime is 61630534872409. The next prime is 61630534872497. The reversal of 61630534872432 is 23427843503616.

61630534872432 is a `hidden beast` number, since 6 + 1 + 6 + 3 + 0 + 534 + 8 + 72 + 4 + 32 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1734734253 + ... + 1734769779.

It is an arithmetic number, because the mean of its divisors is an integer number (1438386057316).

Almost surely, 2^{61630534872432} is an apocalyptic number.

It is an amenable number.

61630534872432 is an abundant number, since it is smaller than the sum of its proper divisors (110975792005488).

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

61630534872432 is a wasteful number, since it uses less digits than its factorization.

61630534872432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44031 (or 44022 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 54.

The spelling of 61630534872432 in words is "sixty-one trillion, six hundred thirty billion, five hundred thirty-four million, eight hundred seventy-two thousand, four hundred thirty-two".