18433319974 has 8 divisors (see below), whose sum is σ = 27657029160. Its totient is φ = 9214310256.

The previous prime is 18433319951. The next prime is 18433319981. The reversal of 18433319974 is 47991333481.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 1165044 + ... + 1180759.

It is an arithmetic number, because the mean of its divisors is an integer number (3457128645).

Almost surely, 2^18433319974 is an apocalyptic number.

18433319974 is a deficient number, since it is larger than the sum of its proper divisors (9223709186).

18433319974 is a wasteful number, since it uses less digits than its factorization.

18433319974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2349734.

The product of its digits is 1959552, while the sum is 52.

The spelling of 18433319974 in words is "eighteen billion, four hundred thirty-three million, three hundred nineteen thousand, nine hundred seventy-four".