18450012284 has 24 divisors (see below), whose sum is σ = 35229331200. Its totient is φ = 8384802480.

The previous prime is 18450012283. The next prime is 18450012313. The reversal of 18450012284 is 48221005481.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18450012283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217997 + ... + 290555.

It is an arithmetic number, because the mean of its divisors is an integer number (1467888800).

Almost surely, 2^18450012284 is an apocalyptic number.

It is an amenable number.

18450012284 is a deficient number, since it is larger than the sum of its proper divisors (16779318916).

18450012284 is a wasteful number, since it uses less digits than its factorization.

18450012284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78353 (or 78351 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 35.

The spelling of 18450012284 in words is "eighteen billion, four hundred fifty million, twelve thousand, two hundred eighty-four".