561386371370626 has 16 divisors (see below), whose sum is σ = 847988638586208. Its totient is φ = 278730248940000.

The previous prime is 561386371370599. The next prime is 561386371370647. The reversal of 561386371370626 is 626073173683165.

It is a super-2 number, since 2×561386371370626² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1689108075 + ... + 1689440398.

It is an arithmetic number, because the mean of its divisors is an integer number (52999289911638).

Almost surely, 2^{561386371370626} is an apocalyptic number.

561386371370626 is a deficient number, since it is larger than the sum of its proper divisors (286602267215582).

561386371370626 is a wasteful number, since it uses less digits than its factorization.

561386371370626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3378549057.

The product of its (nonzero) digits is 137168640, while the sum is 64.

The spelling of 561386371370626 in words is "five hundred sixty-one trillion, three hundred eighty-six billion, three hundred seventy-one million, three hundred seventy thousand, six hundred twenty-six".