18455873497350 has 48 divisors (see below), whose sum is σ = 45772358238720. Its totient is φ = 4921373581600.

The previous prime is 18455873497307. The next prime is 18455873497367. The reversal of 18455873497350 is 5379437855481.

It is a super-2 number, since 2×18455873497350² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1456135 + ... + 6247565.

It is an arithmetic number, because the mean of its divisors is an integer number (953590796640).

Almost surely, 2^{18455873497350} is an apocalyptic number.

18455873497350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18455873497350 is an abundant number, since it is smaller than the sum of its proper divisors (27316484741370).

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

18455873497350 is a wasteful number, since it uses less digits than its factorization.

18455873497350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4817125 (or 4817120 counting only the distinct ones).

The product of its (nonzero) digits is 508032000, while the sum is 69.

The spelling of 18455873497350 in words is "eighteen trillion, four hundred fifty-five billion, eight hundred seventy-three million, four hundred ninety-seven thousand, three hundred fifty".