18873461457140 has 24 divisors (see below), whose sum is σ = 39833436249600. Its totient is φ = 7511447975328.

The previous prime is 18873461457113. The next prime is 18873461457157. The reversal of 18873461457140 is 4175416437881.

It is a self number, because there is not a number n which added to its sum of digits gives 18873461457140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2371033892 + ... + 2371041851.

It is an arithmetic number, because the mean of its divisors is an integer number (1659726510400).

Almost surely, 2^{18873461457140} is an apocalyptic number.

18873461457140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18873461457140 is an abundant number, since it is smaller than the sum of its proper divisors (20959974792460).

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

18873461457140 is a wasteful number, since it uses less digits than its factorization.

18873461457140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4742075951 (or 4742075949 counting only the distinct ones).

The product of its (nonzero) digits is 18063360, while the sum is 59.

The spelling of 18873461457140 in words is "eighteen trillion, eight hundred seventy-three billion, four hundred sixty-one million, four hundred fifty-seven thousand, one hundred forty".