17993856104 has 16 divisors (see below), whose sum is σ = 38558263200. Its totient is φ = 7711652592.

The previous prime is 17993856079. The next prime is 17993856109. The reversal of 17993856104 is 40165839971.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (17993856109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160659374 + ... + 160659485.

It is an arithmetic number, because the mean of its divisors is an integer number (2409891450).

Almost surely, 2^17993856104 is an apocalyptic number.

17993856104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

17993856104 is an abundant number, since it is smaller than the sum of its proper divisors (20564407096).

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

17993856104 is a wasteful number, since it uses less digits than its factorization.

17993856104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321318872 (or 321318868 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 53.

The spelling of 17993856104 in words is "seventeen billion, nine hundred ninety-three million, eight hundred fifty-six thousand, one hundred four".