18190003974 has 16 divisors (see below), whose sum is σ = 37961747712. Its totient is φ = 5799711368.

The previous prime is 18190003943. The next prime is 18190003981. The reversal of 18190003974 is 47930009181.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 65905674 + ... + 65905949.

It is an arithmetic number, because the mean of its divisors is an integer number (2372609232).

Almost surely, 2^18190003974 is an apocalyptic number.

18190003974 is an abundant number, since it is smaller than the sum of its proper divisors (19771743738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18190003974 is a wasteful number, since it uses less digits than its factorization.

18190003974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131811651.

The product of its (nonzero) digits is 54432, while the sum is 42.

The spelling of 18190003974 in words is "eighteen billion, one hundred ninety million, three thousand, nine hundred seventy-four".