18874673562840 has 64 divisors (see below), whose sum is σ = 57692398456800. Its totient is φ = 4938279370752.

The previous prime is 18874673562791. The next prime is 18874673562847. The reversal of 18874673562840 is 4826537647881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18874673562847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1483851625 + ... + 1483864344.

Almost surely, 2^{18874673562840} is an apocalyptic number.

18874673562840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18874673562840 is an abundant number, since it is smaller than the sum of its proper divisors (38817724893960).

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

18874673562840 is a wasteful number, since it uses less digits than its factorization.

18874673562840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2967716036 (or 2967716032 counting only the distinct ones).

The product of its (nonzero) digits is 433520640, while the sum is 69.

The spelling of 18874673562840 in words is "eighteen trillion, eight hundred seventy-four billion, six hundred seventy-three million, five hundred sixty-two thousand, eight hundred forty".