118091189118529 has 27 divisors (see below), whose sum is σ = 130775228379523. Its totient is φ = 106557229671200.

The previous prime is 118091189118523. The next prime is 118091189118547. The reversal of 118091189118529 is 925811981190811.

The square root of 118091189118529 is 10866977.

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

It can be written as a sum of positive squares in only one way, i.e., 69367326977025 + 48723862141504 = 8328705^2 + 6980248^2 .

It is not a de Polignac number, because 118091189118529 - 2²⁵ = 118091155564097 is a prime.

It is a super-2 number, since 2×118091189118529² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118091189118523) 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, 16376530734 + ... + 16376537944.

Almost surely, 2^{118091189118529} is an apocalyptic number.

118091189118529 is the 10866977-th square number.

118091189118529 is the 5433489-th centered octagonal number.

It is an amenable number.

118091189118529 is a deficient number, since it is larger than the sum of its proper divisors (12684039260994).

118091189118529 is an frugal number, since it uses more digits than its factorization.

118091189118529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14718 (or 7359 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 64.

The spelling of 118091189118529 in words is "one hundred eighteen trillion, ninety-one billion, one hundred eighty-nine million, one hundred eighteen thousand, five hundred twenty-nine".