18039248974 has 32 divisors (see below), whose sum is σ = 28134158976. Its totient is φ = 8668265760.

The previous prime is 18039248971. The next prime is 18039249077. The reversal of 18039248974 is 47984293081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18039248971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7956189 + ... + 7958455.

It is an arithmetic number, because the mean of its divisors is an integer number (879192468).

Almost surely, 2^18039248974 is an apocalyptic number.

18039248974 is a deficient number, since it is larger than the sum of its proper divisors (10094910002).

18039248974 is a wasteful number, since it uses less digits than its factorization.

18039248974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3760.

The product of its (nonzero) digits is 3483648, while the sum is 55.

The spelling of 18039248974 in words is "eighteen billion, thirty-nine million, two hundred forty-eight thousand, nine hundred seventy-four".