111394961870 has 64 divisors (see below), whose sum is σ = 213218853120. Its totient is φ = 41782574592.

The previous prime is 111394961863. The next prime is 111394961891. The reversal of 111394961870 is 78169493111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46086902 + ... + 46089318.

It is an arithmetic number, because the mean of its divisors is an integer number (3331544580).

Almost surely, 2^111394961870 is an apocalyptic number.

111394961870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111394961870 is a deficient number, since it is larger than the sum of its proper divisors (101823891250).

111394961870 is a wasteful number, since it uses less digits than its factorization.

111394961870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4817.

The product of its (nonzero) digits is 326592, while the sum is 50.

The spelling of 111394961870 in words is "one hundred eleven billion, three hundred ninety-four million, nine hundred sixty-one thousand, eight hundred seventy".