22927290917 has 2 divisors, whose sum is σ = 22927290918. Its totient is φ = 22927290916.

The previous prime is 22927290887. The next prime is 22927290923. The reversal of 22927290917 is 71909272922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18591595201 + 4335695716 = 136351^2 + 65846^2 .

It is a cyclic number.

It is not a de Polignac number, because 22927290917 - 2¹⁶ = 22927225381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22927290977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11463645458 + 11463645459.

It is an arithmetic number, because the mean of its divisors is an integer number (11463645459).

Almost surely, 2^22927290917 is an apocalyptic number.

It is an amenable number.

22927290917 is a deficient number, since it is larger than the sum of its proper divisors (1).

22927290917 is an equidigital number, since it uses as much as digits as its factorization.

22927290917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 571536, while the sum is 50.

The spelling of 22927290917 in words is "twenty-two billion, nine hundred twenty-seven million, two hundred ninety thousand, nine hundred seventeen".