18701445932 has 24 divisors (see below), whose sum is σ = 37100036400. Its totient is φ = 8177150016.

The previous prime is 18701445929. The next prime is 18701445947. The reversal of 18701445932 is 23954410781.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9463307 + ... + 9465282.

It is an arithmetic number, because the mean of its divisors is an integer number (1545834850).

Almost surely, 2^18701445932 is an apocalyptic number.

It is an amenable number.

18701445932 is a deficient number, since it is larger than the sum of its proper divisors (18398590468).

18701445932 is a wasteful number, since it uses less digits than its factorization.

18701445932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18928625 (or 18928623 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 18701445932 in words is "eighteen billion, seven hundred one million, four hundred forty-five thousand, nine hundred thirty-two".