109979140564836 has 81 divisors (see below), whose sum is σ = 279744918093459. Its totient is φ = 36431409485232.

The previous prime is 109979140564817. The next prime is 109979140564903. The reversal of 109979140564836 is 638465041979901.

It is a happy number.

The square root of 109979140564836 is 10487094.

It is a perfect power (a square), and thus also a powerful number.

109979140564836 is a `hidden beast` number, since 1 + 0 + 9 + 9 + 7 + 91 + 4 + 0 + 56 + 483 + 6 = 666.

It is a super-2 number, since 2×109979140564836² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 10256372571 + ... + 10256383293.

Almost surely, 2^{109979140564836} is an apocalyptic number.

109979140564836 is the 10487094-th square number.

It is an amenable number.

109979140564836 is an abundant number, since it is smaller than the sum of its proper divisors (169765777528623).

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

109979140564836 is an frugal number, since it uses more digits than its factorization.

109979140564836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21782 (or 10891 counting only the distinct ones).

The product of its (nonzero) digits is 352719360, while the sum is 72.

The spelling of 109979140564836 in words is "one hundred nine trillion, nine hundred seventy-nine billion, one hundred forty million, five hundred sixty-four thousand, eight hundred thirty-six".