18618376324 has 12 divisors (see below), whose sum is σ = 33116292748. Its totient is φ = 9156578400.

The previous prime is 18618376313. The next prime is 18618376331. The reversal of 18618376324 is 42367381681.

It can be written as a sum of positive squares in 2 ways, for example, as 684345600 + 17934030724 = 26160^2 + 133918^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38152167 + ... + 38152654.

Almost surely, 2^18618376324 is an apocalyptic number.

It is an amenable number.

18618376324 is a deficient number, since it is larger than the sum of its proper divisors (14497916424).

18618376324 is a wasteful number, since it uses less digits than its factorization.

18618376324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76304886 (or 76304884 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 49.

The spelling of 18618376324 in words is "eighteen billion, six hundred eighteen million, three hundred seventy-six thousand, three hundred twenty-four".