18539274270 has 32 divisors (see below), whose sum is σ = 48539191680. Its totient is φ = 4494369440.

The previous prime is 18539274211. The next prime is 18539274311. The reversal of 18539274270 is 7247293581.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28089480 + ... + 28090139.

It is an arithmetic number, because the mean of its divisors is an integer number (1516849740).

Almost surely, 2^18539274270 is an apocalyptic number.

18539274270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18539274270 is an abundant number, since it is smaller than the sum of its proper divisors (29999917410).

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

18539274270 is a wasteful number, since it uses less digits than its factorization.

18539274270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56179640.

The product of its (nonzero) digits is 846720, while the sum is 48.

The spelling of 18539274270 in words is "eighteen billion, five hundred thirty-nine million, two hundred seventy-four thousand, two hundred seventy".