22917491317 has 4 divisors (see below), whose sum is σ = 26191418656. Its totient is φ = 19643563980.

The previous prime is 22917491293. The next prime is 22917491351. The reversal of 22917491317 is 71319471922.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71319471922 = 2 ⋅35659735961.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22917491317 is a prime.

It is a super-2 number, since 2×22917491317² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22917401317) 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, 1636963659 + ... + 1636963672.

It is an arithmetic number, because the mean of its divisors is an integer number (6547854664).

Almost surely, 2^22917491317 is an apocalyptic number.

It is an amenable number.

22917491317 is a deficient number, since it is larger than the sum of its proper divisors (3273927339).

22917491317 is an equidigital number, since it uses as much as digits as its factorization.

22917491317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3273927338.

The product of its digits is 190512, while the sum is 46.

The spelling of 22917491317 in words is "twenty-two billion, nine hundred seventeen million, four hundred ninety-one thousand, three hundred seventeen".