18400545450364 has 96 divisors (see below), whose sum is σ = 42723992070144. Its totient is φ = 6713084421120.

The previous prime is 18400545450257. The next prime is 18400545450377. The reversal of 18400545450364 is 46305454500481.

It is a super-2 number, since 2×18400545450364² (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 31 ways as a sum of consecutive naturals, for example, 7887892 + ... + 9950875.

It is an arithmetic number, because the mean of its divisors is an integer number (445041584064).

Almost surely, 2^{18400545450364} is an apocalyptic number.

18400545450364 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18400545450364 is an abundant number, since it is smaller than the sum of its proper divisors (24323446619780).

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

18400545450364 is a wasteful number, since it uses less digits than its factorization.

18400545450364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17839003 (or 17839001 counting only the distinct ones).

The product of its (nonzero) digits is 4608000, while the sum is 49.

The spelling of 18400545450364 in words is "eighteen trillion, four hundred billion, five hundred forty-five million, four hundred fifty thousand, three hundred sixty-four".