22765030397 has 2 divisors, whose sum is σ = 22765030398. Its totient is φ = 22765030396.

The previous prime is 22765030307. The next prime is 22765030399. The reversal of 22765030397 is 79303056722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18514772761 + 4250257636 = 136069^2 + 65194^2 .

It is a cyclic number.

It is not a de Polignac number, because 22765030397 - 2³⁴ = 5585161213 is a prime.

Together with 22765030399, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22765030399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11382515198 + 11382515199.

It is an arithmetic number, because the mean of its divisors is an integer number (11382515199).

Almost surely, 2^22765030397 is an apocalyptic number.

It is an amenable number.

22765030397 is a deficient number, since it is larger than the sum of its proper divisors (1).

22765030397 is an equidigital number, since it uses as much as digits as its factorization.

22765030397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 476280, while the sum is 44.

The spelling of 22765030397 in words is "twenty-two billion, seven hundred sixty-five million, thirty thousand, three hundred ninety-seven".