22077265391 has 2 divisors, whose sum is σ = 22077265392. Its totient is φ = 22077265390.

The previous prime is 22077265387. The next prime is 22077265417. The reversal of 22077265391 is 19356277022.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22077265391 - 2² = 22077265387 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22077265361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11038632695 + 11038632696.

It is an arithmetic number, because the mean of its divisors is an integer number (11038632696).

Almost surely, 2^22077265391 is an apocalyptic number.

22077265391 is a deficient number, since it is larger than the sum of its proper divisors (1).

22077265391 is an equidigital number, since it uses as much as digits as its factorization.

22077265391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 317520, while the sum is 44.

The spelling of 22077265391 in words is "twenty-two billion, seventy-seven million, two hundred sixty-five thousand, three hundred ninety-one".