18745269898000 has 40 divisors (see below), whose sum is σ = 45326062618200. Its totient is φ = 7498107958400.

The previous prime is 18745269897967. The next prime is 18745269898007. The reversal of 18745269898000 is 89896254781.

It can be written as a sum of positive squares in 4 ways, for example, as 2708512811536 + 16036757086464 = 1645756^2 + 4004592^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (18745269898007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4686315475 + ... + 4686319474.

It is an arithmetic number, because the mean of its divisors is an integer number (1133151565455).

Almost surely, 2^{18745269898000} is an apocalyptic number.

18745269898000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18745269898000 is an abundant number, since it is smaller than the sum of its proper divisors (26580792720200).

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

18745269898000 is an equidigital number, since it uses as much as digits as its factorization.

18745269898000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9372634972 (or 9372634956 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 67.

The spelling of 18745269898000 in words is "eighteen trillion, seven hundred forty-five billion, two hundred sixty-nine million, eight hundred ninety-eight thousand".