18607438604 has 24 divisors (see below), whose sum is σ = 34485737328. Its totient is φ = 8754600960.

The previous prime is 18607438601. The next prime is 18607438613. The reversal of 18607438604 is 40683470681.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18607438601) 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 7 ways as a sum of consecutive naturals, for example, 329699 + ... + 381989.

It is an arithmetic number, because the mean of its divisors is an integer number (1436905722).

Almost surely, 2^18607438604 is an apocalyptic number.

It is an amenable number.

18607438604 is a deficient number, since it is larger than the sum of its proper divisors (15878298724).

18607438604 is a wasteful number, since it uses less digits than its factorization.

18607438604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57545 (or 57543 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 47.

The spelling of 18607438604 in words is "eighteen billion, six hundred seven million, four hundred thirty-eight thousand, six hundred four".