22775183897 has 2 divisors, whose sum is σ = 22775183898. Its totient is φ = 22775183896.

The previous prime is 22775183887. The next prime is 22775183923. The reversal of 22775183897 is 79838157722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20477323801 + 2297860096 = 143099^2 + 47936^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22775183897 is a prime.

It is not a weakly prime, because it can be changed into another prime (22775183887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11387591948 + 11387591949.

It is an arithmetic number, because the mean of its divisors is an integer number (11387591949).

Almost surely, 2^22775183897 is an apocalyptic number.

It is an amenable number.

22775183897 is a deficient number, since it is larger than the sum of its proper divisors (1).

22775183897 is an equidigital number, since it uses as much as digits as its factorization.

22775183897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11854080, while the sum is 59.

The spelling of 22775183897 in words is "twenty-two billion, seven hundred seventy-five million, one hundred eighty-three thousand, eight hundred ninety-seven".