18871604215360 has 112 divisors (see below), whose sum is σ = 48715274184192. Its totient is φ = 6921831168000.

The previous prime is 18871604215357. The next prime is 18871604215361. The reversal of 18871604215360 is 6351240617881.

It is a super-2 number, since 2×18871604215360² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a junction number, because it is equal to n+sod(n) for n = 18871604215298 and 18871604215307.

It is not an unprimeable number, because it can be changed into a prime (18871604215361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14393176 + ... + 15649495.

It is an arithmetic number, because the mean of its divisors is an integer number (434957805216).

Almost surely, 2^{18871604215360} is an apocalyptic number.

18871604215360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18871604215360 is an abundant number, since it is smaller than the sum of its proper divisors (29843669968832).

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

18871604215360 is a wasteful number, since it uses less digits than its factorization.

18871604215360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30042852 (or 30042842 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 18871604215360 in words is "eighteen trillion, eight hundred seventy-one billion, six hundred four million, two hundred fifteen thousand, three hundred sixty".