18874931348 has 48 divisors (see below), whose sum is σ = 41518708224. Its totient is φ = 7308126720.

The previous prime is 18874931291. The next prime is 18874931351. The reversal of 18874931348 is 84313947881.

It is a junction number, because it is equal to n+sod(n) for n = 18874931293 and 18874931302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 534533 + ... + 568748.

It is an arithmetic number, because the mean of its divisors is an integer number (864973088).

Almost surely, 2^18874931348 is an apocalyptic number.

It is an amenable number.

18874931348 is an abundant number, since it is smaller than the sum of its proper divisors (22643776876).

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

18874931348 is a wasteful number, since it uses less digits than its factorization.

18874931348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103352 (or 1103350 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 56.

The spelling of 18874931348 in words is "eighteen billion, eight hundred seventy-four million, nine hundred thirty-one thousand, three hundred forty-eight".