115238872185 has 32 divisors (see below), whose sum is σ = 184926799872. Its totient is φ = 61279458240.

The previous prime is 115238872171. The next prime is 115238872193. The reversal of 115238872185 is 581278832511.

It is not a de Polignac number, because 115238872185 - 2⁴ = 115238872169 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7762720 + ... + 7777550.

It is an arithmetic number, because the mean of its divisors is an integer number (5778962496).

Almost surely, 2^115238872185 is an apocalyptic number.

115238872185 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115238872185 is a deficient number, since it is larger than the sum of its proper divisors (69687927687).

115238872185 is a wasteful number, since it uses less digits than its factorization.

115238872185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16333.

The product of its digits is 1075200, while the sum is 51.

The spelling of 115238872185 in words is "one hundred fifteen billion, two hundred thirty-eight million, eight hundred seventy-two thousand, one hundred eighty-five".