18502045712 has 40 divisors (see below), whose sum is σ = 36439191552. Its totient is φ = 9098812800.

The previous prime is 18502045669. The next prime is 18502045717. The reversal of 18502045712 is 21754020581.

It is not an unprimeable number, because it can be changed into a prime (18502045717) 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, 695537 + ... + 721647.

Almost surely, 2^18502045712 is an apocalyptic number.

It is an amenable number.

18502045712 is a deficient number, since it is larger than the sum of its proper divisors (17937145840).

18502045712 is a wasteful number, since it uses less digits than its factorization.

18502045712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26847 (or 26841 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 35.

The spelling of 18502045712 in words is "eighteen billion, five hundred two million, forty-five thousand, seven hundred twelve".