18232574280 has 64 divisors (see below), whose sum is σ = 54735436800. Its totient is φ = 4858667520.

The previous prime is 18232574263. The next prime is 18232574293. The reversal of 18232574280 is 8247523281.

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, 124876 + ... + 228164.

It is an arithmetic number, because the mean of its divisors is an integer number (855241200).

Almost surely, 2^18232574280 is an apocalyptic number.

18232574280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18232574280 is an abundant number, since it is smaller than the sum of its proper divisors (36502862520).

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

18232574280 is a wasteful number, since it uses less digits than its factorization.

18232574280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104774 (or 104770 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The spelling of 18232574280 in words is "eighteen billion, two hundred thirty-two million, five hundred seventy-four thousand, two hundred eighty".