22775397969391 has 2 divisors, whose sum is σ = 22775397969392. Its totient is φ = 22775397969390.

The previous prime is 22775397969361. The next prime is 22775397969397. The reversal of 22775397969391 is 19396979357722.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22775397969391 - 2²¹ = 22775395872239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22775397969397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11387698984695 + 11387698984696.

It is an arithmetic number, because the mean of its divisors is an integer number (11387698984696).

Almost surely, 2^{22775397969391} is an apocalyptic number.

22775397969391 is a deficient number, since it is larger than the sum of its proper divisors (1).

22775397969391 is an equidigital number, since it uses as much as digits as its factorization.

22775397969391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2430456840, while the sum is 79.

The spelling of 22775397969391 in words is "twenty-two trillion, seven hundred seventy-five billion, three hundred ninety-seven million, nine hundred sixty-nine thousand, three hundred ninety-one".