18845131460140 has 12 divisors (see below), whose sum is σ = 39574776066336. Its totient is φ = 7538052584048.

The previous prime is 18845131460131. The next prime is 18845131460213. The reversal of 18845131460140 is 4106413154881.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 471128286484 + ... + 471128286523.

It is an arithmetic number, because the mean of its divisors is an integer number (3297898005528).

Almost surely, 2^{18845131460140} is an apocalyptic number.

18845131460140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18845131460140 is an abundant number, since it is smaller than the sum of its proper divisors (20729644606196).

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

18845131460140 is a wasteful number, since it uses less digits than its factorization.

18845131460140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942256573016 (or 942256573014 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 46.

The spelling of 18845131460140 in words is "eighteen trillion, eight hundred forty-five billion, one hundred thirty-one million, four hundred sixty thousand, one hundred forty".