115939082585 has 4 divisors (see below), whose sum is σ = 139126899108. Its totient is φ = 92751266064.

The previous prime is 115939082543. The next prime is 115939082591. The reversal of 115939082585 is 585280939511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 77470928896 + 38468153689 = 278336^2 + 196133^2 .

It is a cyclic number.

It is not a de Polignac number, because 115939082585 - 2²⁸ = 115670647129 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115939082585.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11593908254 + ... + 11593908263.

It is an arithmetic number, because the mean of its divisors is an integer number (34781724777).

Almost surely, 2^115939082585 is an apocalyptic number.

It is an amenable number.

115939082585 is a deficient number, since it is larger than the sum of its proper divisors (23187816523).

115939082585 is an equidigital number, since it uses as much as digits as its factorization.

115939082585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23187816522.

The product of its (nonzero) digits is 3888000, while the sum is 56.

The spelling of 115939082585 in words is "one hundred fifteen billion, nine hundred thirty-nine million, eighty-two thousand, five hundred eighty-five".