18115031804 has 12 divisors (see below), whose sum is σ = 32474508528. Its totient is φ = 8836600800.

The previous prime is 18115031773. The next prime is 18115031827. The reversal of 18115031804 is 40813051181.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 55228592 + ... + 55228919.

It is an arithmetic number, because the mean of its divisors is an integer number (2706209044).

Almost surely, 2^18115031804 is an apocalyptic number.

It is an amenable number.

18115031804 is a deficient number, since it is larger than the sum of its proper divisors (14359476724).

18115031804 is a wasteful number, since it uses less digits than its factorization.

18115031804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110457556 (or 110457554 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 32.

Adding to 18115031804 its reverse (40813051181), we get a palindrome (58928082985).

The spelling of 18115031804 in words is "eighteen billion, one hundred fifteen million, thirty-one thousand, eight hundred four".