17874494394 has 16 divisors (see below), whose sum is σ = 36009931968. Its totient is φ = 5914674272.

The previous prime is 17874494389. The next prime is 17874494401. The reversal of 17874494394 is 49349447871.

It is a super-2 number, since 2×17874494394² (a number of 21 digits) contains 22 as substring.

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, 10871742 + ... + 10873385.

It is an arithmetic number, because the mean of its divisors is an integer number (2250620748).

Almost surely, 2^17874494394 is an apocalyptic number.

17874494394 is an abundant number, since it is smaller than the sum of its proper divisors (18135437574).

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

17874494394 is a wasteful number, since it uses less digits than its factorization.

17874494394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21745269.

The product of its digits is 24385536, while the sum is 60.

The spelling of 17874494394 in words is "seventeen billion, eight hundred seventy-four million, four hundred ninety-four thousand, three hundred ninety-four".