109515326761 has 27 divisors (see below), whose sum is σ = 114442545693. Its totient is φ = 104799229080.

The previous prime is 109515326749. The next prime is 109515326797. The reversal of 109515326761 is 167623515901.

The square root of 109515326761 is 330931.

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

It is not a de Polignac number, because 109515326761 - 2²⁹ = 108978455849 is a prime.

It is a super-2 number, since 2×109515326761² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109515321761) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1386269920 + ... + 1386269998.

Almost surely, 2^109515326761 is an apocalyptic number.

109515326761 is the 330931-st square number.

109515326761 is the 165466-th centered octagonal number.

It is an amenable number.

109515326761 is a deficient number, since it is larger than the sum of its proper divisors (4927218932).

109515326761 is an frugal number, since it uses more digits than its factorization.

109515326761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 46.

The spelling of 109515326761 in words is "one hundred nine billion, five hundred fifteen million, three hundred twenty-six thousand, seven hundred sixty-one".