18495985960 has 16 divisors (see below), whose sum is σ = 41615968500. Its totient is φ = 7398394368.

The previous prime is 18495985939. The next prime is 18495986021. The reversal of 18495985960 is 6958959481.

It can be written as a sum of positive squares in 2 ways, for example, as 15937042564 + 2558943396 = 126242^2 + 50586^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18495985892 and 18495985901.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231199785 + ... + 231199864.

Almost surely, 2^18495985960 is an apocalyptic number.

18495985960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18495985960 is an abundant number, since it is smaller than the sum of its proper divisors (23119982540).

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

18495985960 is a wasteful number, since it uses less digits than its factorization.

18495985960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462399660 (or 462399656 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 64.

It can be divided in two parts, 1849 and 5985960, that added together give a square (5987809 = 2447²).

The spelling of 18495985960 in words is "eighteen billion, four hundred ninety-five million, nine hundred eighty-five thousand, nine hundred sixty".