17974071612 has 72 divisors (see below), whose sum is σ = 54207533520. Its totient is φ = 5135447520.

The previous prime is 17974071587. The next prime is 17974071641. The reversal of 17974071612 is 21617047971.

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 23 ways as a sum of consecutive naturals, for example, 1692939 + ... + 1703522.

It is an arithmetic number, because the mean of its divisors is an integer number (752882410).

Almost surely, 2^17974071612 is an apocalyptic number.

17974071612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

17974071612 is an abundant number, since it is smaller than the sum of its proper divisors (36233461908).

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

17974071612 is a wasteful number, since it uses less digits than its factorization.

17974071612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3396488 (or 3396473 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 45.

The spelling of 17974071612 in words is "seventeen billion, nine hundred seventy-four million, seventy-one thousand, six hundred twelve".