18539484210 has 72 divisors (see below), whose sum is σ = 52195821444. Its totient is φ = 4563561600.

The previous prime is 18539484209. The next prime is 18539484241. The reversal of 18539484210 is 1248493581.

18539484210 is a `hidden beast` number, since 18 + 539 + 4 + 84 + 21 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 1384509681 + 17154974529 = 37209^2 + 130977^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 594241 + ... + 624660.

Almost surely, 2^18539484210 is an apocalyptic number.

18539484210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18539484210 is an abundant number, since it is smaller than the sum of its proper divisors (33656337234).

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

18539484210 is a wasteful number, since it uses less digits than its factorization.

18539484210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218940 (or 1218924 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 18539484210 in words is "eighteen billion, five hundred thirty-nine million, four hundred eighty-four thousand, two hundred ten".