17994011604 has 24 divisors (see below), whose sum is σ = 41998770240. Its totient is φ = 5996183424.

The previous prime is 17994011599. The next prime is 17994011627. The reversal of 17994011604 is 40611049971.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186069 + ... + 265724.

It is an arithmetic number, because the mean of its divisors is an integer number (1749948760).

Almost surely, 2^17994011604 is an apocalyptic number.

It is an amenable number.

17994011604 is an abundant number, since it is smaller than the sum of its proper divisors (24004758636).

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

17994011604 is a wasteful number, since it uses less digits than its factorization.

17994011604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455119 (or 455117 counting only the distinct ones).

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

The spelling of 17994011604 in words is "seventeen billion, nine hundred ninety-four million, eleven thousand, six hundred four".