17922492317 has 2 divisors, whose sum is σ = 17922492318. Its totient is φ = 17922492316.

The previous prime is 17922492283. The next prime is 17922492337. The reversal of 17922492317 is 71329422971.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17842013476 + 80478841 = 133574^2 + 8971^2 .

It is an emirp because it is prime and its reverse (71329422971) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 17922492317 - 2⁶ = 17922492253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17922492337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8961246158 + 8961246159.

It is an arithmetic number, because the mean of its divisors is an integer number (8961246159).

Almost surely, 2^17922492317 is an apocalyptic number.

It is an amenable number.

17922492317 is a deficient number, since it is larger than the sum of its proper divisors (1).

17922492317 is an equidigital number, since it uses as much as digits as its factorization.

17922492317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 381024, while the sum is 47.

The spelling of 17922492317 in words is "seventeen billion, nine hundred twenty-two million, four hundred ninety-two thousand, three hundred seventeen".