18231334875 has 128 divisors (see below), whose sum is σ = 36505647360. Its totient is φ = 8924774400.

The previous prime is 18231334831. The next prime is 18231334883. The reversal of 18231334875 is 57843313281.

18231334875 is a `hidden beast` number, since 1 + 8 + 231 + 3 + 348 + 75 = 666.

It is not a de Polignac number, because 18231334875 - 2⁶ = 18231334811 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 18231334875.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 8466799 + ... + 8468951.

It is an arithmetic number, because the mean of its divisors is an integer number (285200370).

Almost surely, 2^18231334875 is an apocalyptic number.

18231334875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18231334875 is an abundant number, since it is smaller than the sum of its proper divisors (18274312485).

18231334875 is a wasteful number, since it uses less digits than its factorization.

18231334875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2383 (or 2367 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The spelling of 18231334875 in words is "eighteen billion, two hundred thirty-one million, three hundred thirty-four thousand, eight hundred seventy-five".