17997270479 has 2 divisors, whose sum is σ = 17997270480. Its totient is φ = 17997270478.

The previous prime is 17997270463. The next prime is 17997270539. The reversal of 17997270479 is 97407279971.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 17997270479 - 2⁴ = 17997270463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17997279479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8998635239 + 8998635240.

It is an arithmetic number, because the mean of its divisors is an integer number (8998635240).

Almost surely, 2^17997270479 is an apocalyptic number.

17997270479 is a deficient number, since it is larger than the sum of its proper divisors (1).

17997270479 is an equidigital number, since it uses as much as digits as its factorization.

17997270479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14002632, while the sum is 62.

The spelling of 17997270479 in words is "seventeen billion, nine hundred ninety-seven million, two hundred seventy thousand, four hundred seventy-nine".