22774901879 has 2 divisors, whose sum is σ = 22774901880. Its totient is φ = 22774901878.

The previous prime is 22774901873. The next prime is 22774901923. The reversal of 22774901879 is 97810947722.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22774901879 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22774901873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11387450939 + 11387450940.

It is an arithmetic number, because the mean of its divisors is an integer number (11387450940).

Almost surely, 2^22774901879 is an apocalyptic number.

22774901879 is a deficient number, since it is larger than the sum of its proper divisors (1).

22774901879 is an equidigital number, since it uses as much as digits as its factorization.

22774901879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3556224, while the sum is 56.

The spelling of 22774901879 in words is "twenty-two billion, seven hundred seventy-four million, nine hundred one thousand, eight hundred seventy-nine".