18121674264 has 32 divisors (see below), whose sum is σ = 45465427440. Its totient is φ = 6019059200.

The previous prime is 18121674257. The next prime is 18121674271. The reversal of 18121674264 is 46247612181.

It is an interprime number because it is at equal distance from previous prime (18121674257) and next prime (18121674271).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1336797 + ... + 1350284.

Almost surely, 2^18121674264 is an apocalyptic number.

It is an amenable number.

18121674264 is an abundant number, since it is smaller than the sum of its proper divisors (27343753176).

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

18121674264 is a wasteful number, since it uses less digits than its factorization.

18121674264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2687371 (or 2687367 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The spelling of 18121674264 in words is "eighteen billion, one hundred twenty-one million, six hundred seventy-four thousand, two hundred sixty-four".