18535223274 has 32 divisors (see below), whose sum is σ = 37421372736. Its totient is φ = 6120092160.

The previous prime is 18535223257. The next prime is 18535223303. The reversal of 18535223274 is 47232253581.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 416634 + ... + 458970.

It is an arithmetic number, because the mean of its divisors is an integer number (1169417898).

Almost surely, 2^18535223274 is an apocalyptic number.

18535223274 is an abundant number, since it is smaller than the sum of its proper divisors (18886149462).

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

18535223274 is a wasteful number, since it uses less digits than its factorization.

18535223274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43030.

The product of its digits is 403200, while the sum is 42.

The spelling of 18535223274 in words is "eighteen billion, five hundred thirty-five million, two hundred twenty-three thousand, two hundred seventy-four".