17974492338 has 32 divisors (see below), whose sum is σ = 39503350080. Its totient is φ = 5407055360.

The previous prime is 17974492337. The next prime is 17974492351. The reversal of 17974492338 is 83329447971.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (17974492337) 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, 984903 + ... + 1002986.

It is an arithmetic number, because the mean of its divisors is an integer number (1234479690).

Almost surely, 2^17974492338 is an apocalyptic number.

17974492338 is an abundant number, since it is smaller than the sum of its proper divisors (21528857742).

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

17974492338 is a wasteful number, since it uses less digits than its factorization.

17974492338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988042.

The product of its digits is 9144576, while the sum is 57.

The spelling of 17974492338 in words is "seventeen billion, nine hundred seventy-four million, four hundred ninety-two thousand, three hundred thirty-eight".