18365234974 has 16 divisors (see below), whose sum is σ = 28358081856. Its totient is φ = 8913693600.

The previous prime is 18365234911. The next prime is 18365234977. The reversal of 18365234974 is 47943256381.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18365234977) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 256017 + ... + 319804.

It is an arithmetic number, because the mean of its divisors is an integer number (1772380116).

Almost surely, 2^18365234974 is an apocalyptic number.

18365234974 is a deficient number, since it is larger than the sum of its proper divisors (9992846882).

18365234974 is a wasteful number, since it uses less digits than its factorization.

18365234974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576291.

The product of its digits is 4354560, while the sum is 52.

The spelling of 18365234974 in words is "eighteen billion, three hundred sixty-five million, two hundred thirty-four thousand, nine hundred seventy-four".