18373432904 has 16 divisors (see below), whose sum is σ = 35561483520. Its totient is φ = 8890370640.

The previous prime is 18373432897. The next prime is 18373432943. The reversal of 18373432904 is 40923437381.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37042964 + ... + 37043459.

It is an arithmetic number, because the mean of its divisors is an integer number (2222592720).

Almost surely, 2^18373432904 is an apocalyptic number.

It is an amenable number.

18373432904 is a deficient number, since it is larger than the sum of its proper divisors (17188050616).

18373432904 is a wasteful number, since it uses less digits than its factorization.

18373432904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74086460 (or 74086456 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 44.

The spelling of 18373432904 in words is "eighteen billion, three hundred seventy-three million, four hundred thirty-two thousand, nine hundred four".