17279904457 has 2 divisors, whose sum is σ = 17279904458. Its totient is φ = 17279904456.

The previous prime is 17279904413. The next prime is 17279904469. The reversal of 17279904457 is 75440997271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16805492496 + 474411961 = 129636^2 + 21781^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17279904457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 17279904398 and 17279904407.

It is not a weakly prime, because it can be changed into another prime (17279904557) 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, 8639952228 + 8639952229.

It is an arithmetic number, because the mean of its divisors is an integer number (8639952229).

Almost surely, 2^17279904457 is an apocalyptic number.

It is an amenable number.

17279904457 is a deficient number, since it is larger than the sum of its proper divisors (1).

17279904457 is an equidigital number, since it uses as much as digits as its factorization.

17279904457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4445280, while the sum is 55.

The spelling of 17279904457 in words is "seventeen billion, two hundred seventy-nine million, nine hundred four thousand, four hundred fifty-seven".