18579568974 has 24 divisors (see below), whose sum is σ = 39473551608. Its totient is φ = 5828883840.

The previous prime is 18579568963. The next prime is 18579568999. The reversal of 18579568974 is 47986597581.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18579568899 and 18579568908.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 5355697 + ... + 5359164.

It is an arithmetic number, because the mean of its divisors is an integer number (1644731317).

Almost surely, 2^18579568974 is an apocalyptic number.

18579568974 is an abundant number, since it is smaller than the sum of its proper divisors (20893982634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18579568974 is a wasteful number, since it uses less digits than its factorization.

18579568974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10714900 (or 10714883 counting only the distinct ones).

The product of its digits is 152409600, while the sum is 69.

The spelling of 18579568974 in words is "eighteen billion, five hundred seventy-nine million, five hundred sixty-eight thousand, nine hundred seventy-four".