17990159839775 has 6 divisors (see below), whose sum is σ = 22307798201352. Its totient is φ = 14392127871800.

The previous prime is 17990159839763. The next prime is 17990159839781. The reversal of 17990159839775 is 57793895109971.

It is not a de Polignac number, because 17990159839775 - 2⁴ = 17990159839759 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 17990159839775.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 359803196771 + ... + 359803196820.

It is an arithmetic number, because the mean of its divisors is an integer number (3717966366892).

Almost surely, 2^{17990159839775} is an apocalyptic number.

17990159839775 is a deficient number, since it is larger than the sum of its proper divisors (4317638361577).

17990159839775 is an equidigital number, since it uses as much as digits as its factorization.

17990159839775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719606393601 (or 719606393596 counting only the distinct ones).

The product of its (nonzero) digits is 1350253800, while the sum is 80.

The spelling of 17990159839775 in words is "seventeen trillion, nine hundred ninety billion, one hundred fifty-nine million, eight hundred thirty-nine thousand, seven hundred seventy-five".