22940855491 has 2 divisors, whose sum is σ = 22940855492. Its totient is φ = 22940855490.

The previous prime is 22940855489. The next prime is 22940855537. The reversal of 22940855491 is 19455804922.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22940855491 - 2¹ = 22940855489 is a prime.

Together with 22940855489, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22940885491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11470427745 + 11470427746.

It is an arithmetic number, because the mean of its divisors is an integer number (11470427746).

Almost surely, 2^22940855491 is an apocalyptic number.

22940855491 is a deficient number, since it is larger than the sum of its proper divisors (1).

22940855491 is an equidigital number, since it uses as much as digits as its factorization.

22940855491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1036800, while the sum is 49.

The spelling of 22940855491 in words is "twenty-two billion, nine hundred forty million, eight hundred fifty-five thousand, four hundred ninety-one".