461571411502564 has 36 divisors (see below), whose sum is σ = 887987424341500. Its totient is φ = 209774462863680.

The previous prime is 461571411502547. The next prime is 461571411502667. The reversal of 461571411502564 is 465205114175164.

It can be written as a sum of positive squares in 2 ways, for example, as 104220781664164 + 357350629838400 = 10208858^2 + 18903720^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66519039 + ... + 73129510.

Almost surely, 2^{461571411502564} is an apocalyptic number.

461571411502564 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

461571411502564 is a deficient number, since it is larger than the sum of its proper divisors (426416012838936).

461571411502564 is a wasteful number, since it uses less digits than its factorization.

461571411502564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139655404 (or 139655391 counting only the distinct ones).

The product of its (nonzero) digits is 4032000, while the sum is 52.

The spelling of 461571411502564 in words is "four hundred sixty-one trillion, five hundred seventy-one billion, four hundred eleven million, five hundred two thousand, five hundred sixty-four".