18608918307 has 48 divisors (see below), whose sum is σ = 30475209600. Its totient is φ = 10043066880.

The previous prime is 18608918299. The next prime is 18608918327. The reversal of 18608918307 is 70381980681.

It is not a de Polignac number, because 18608918307 - 2³ = 18608918299 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18608918307.

It is not an unprimeable number, because it can be changed into a prime (18608918327) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 914419 + ... + 934547.

It is an arithmetic number, because the mean of its divisors is an integer number (634900200).

Almost surely, 2^18608918307 is an apocalyptic number.

18608918307 is a deficient number, since it is larger than the sum of its proper divisors (11866291293).

18608918307 is a wasteful number, since it uses less digits than its factorization.

18608918307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20496 (or 20489 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 51.

The spelling of 18608918307 in words is "eighteen billion, six hundred eight million, nine hundred eighteen thousand, three hundred seven".