17990632241279 has 4 divisors (see below), whose sum is σ = 17990661899376. Its totient is φ = 17990602583184.

The previous prime is 17990632241251. The next prime is 17990632241321. The reversal of 17990632241279 is 97214223609971.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17990632241279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17990632241479) 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, 13899734 + ... + 15138819.

It is an arithmetic number, because the mean of its divisors is an integer number (4497665474844).

Almost surely, 2^{17990632241279} is an apocalyptic number.

17990632241279 is a deficient number, since it is larger than the sum of its proper divisors (29658097).

17990632241279 is an equidigital number, since it uses as much as digits as its factorization.

17990632241279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29658096.

The product of its (nonzero) digits is 20575296, while the sum is 62.

The spelling of 17990632241279 in words is "seventeen trillion, nine hundred ninety billion, six hundred thirty-two million, two hundred forty-one thousand, two hundred seventy-nine".