22794777931 has 2 divisors, whose sum is σ = 22794777932. Its totient is φ = 22794777930.

The previous prime is 22794777919. The next prime is 22794778043. The reversal of 22794777931 is 13977749722.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22794777931 - 2⁵ = 22794777899 is a prime.

It is a super-2 number, since 2×22794777931² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22794577931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11397388965 + 11397388966.

It is an arithmetic number, because the mean of its divisors is an integer number (11397388966).

Almost surely, 2^22794777931 is an apocalyptic number.

22794777931 is a deficient number, since it is larger than the sum of its proper divisors (1).

22794777931 is an equidigital number, since it uses as much as digits as its factorization.

22794777931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9335088, while the sum is 58.

The spelling of 22794777931 in words is "twenty-two billion, seven hundred ninety-four million, seven hundred seventy-seven thousand, nine hundred thirty-one".