17993350158 has 64 divisors (see below), whose sum is σ = 41487925248. Its totient is φ = 5096014560.

The previous prime is 17993350147. The next prime is 17993350201. The reversal of 17993350158 is 85105339971.

It is a self number, because there is not a number n which added to its sum of digits gives 17993350158.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8620591 + ... + 8622677.

It is an arithmetic number, because the mean of its divisors is an integer number (648248832).

Almost surely, 2^17993350158 is an apocalyptic number.

17993350158 is an abundant number, since it is smaller than the sum of its proper divisors (23494575090).

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

17993350158 is a wasteful number, since it uses less digits than its factorization.

17993350158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3797.

The product of its (nonzero) digits is 1020600, while the sum is 51.

The spelling of 17993350158 in words is "seventeen billion, nine hundred ninety-three million, three hundred fifty thousand, one hundred fifty-eight".