17990632241479 has 2 divisors, whose sum is σ = 17990632241480. Its totient is φ = 17990632241478.

The previous prime is 17990632241431. The next prime is 17990632241501. The reversal of 17990632241479 is 97414223609971.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17990632241479 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 17990632241479.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17990632241419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8995316120739 + 8995316120740.

It is an arithmetic number, because the mean of its divisors is an integer number (8995316120740).

Almost surely, 2^{17990632241479} is an apocalyptic number.

17990632241479 is a deficient number, since it is larger than the sum of its proper divisors (1).

17990632241479 is an equidigital number, since it uses as much as digits as its factorization.

17990632241479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41150592, while the sum is 64.

The spelling of 17990632241479 in words is "seventeen trillion, nine hundred ninety billion, six hundred thirty-two million, two hundred forty-one thousand, four hundred seventy-nine".