84389185923 has 32 divisors (see below), whose sum is σ = 131050732032. Its totient is φ = 47301196800.

The previous prime is 84389185913. The next prime is 84389185927. The reversal of 84389185923 is 32958198348.

It is not a de Polignac number, because 84389185923 - 2⁵ = 84389185891 is a prime.

It is a super-2 number, since 2×84389185923² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84389185927) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7218643 + ... + 7230323.

It is an arithmetic number, because the mean of its divisors is an integer number (4095335376).

Almost surely, 2^84389185923 is an apocalyptic number.

84389185923 is a deficient number, since it is larger than the sum of its proper divisors (46661546109).

84389185923 is a wasteful number, since it uses less digits than its factorization.

84389185923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18235.

The product of its digits is 14929920, while the sum is 60.

The spelling of 84389185923 in words is "eighty-four billion, three hundred eighty-nine million, one hundred eighty-five thousand, nine hundred twenty-three".