22956817973 has 2 divisors, whose sum is σ = 22956817974. Its totient is φ = 22956817972.

The previous prime is 22956817967. The next prime is 22956817991. The reversal of 22956817973 is 37971865922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22626778084 + 330039889 = 150422^2 + 18167^2 .

It is a cyclic number.

It is not a de Polignac number, because 22956817973 - 2³² = 18661850677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22956817073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11478408986 + 11478408987.

It is an arithmetic number, because the mean of its divisors is an integer number (11478408987).

Almost surely, 2^22956817973 is an apocalyptic number.

It is an amenable number.

22956817973 is a deficient number, since it is larger than the sum of its proper divisors (1).

22956817973 is an equidigital number, since it uses as much as digits as its factorization.

22956817973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11430720, while the sum is 59.

The spelling of 22956817973 in words is "twenty-two billion, nine hundred fifty-six million, eight hundred seventeen thousand, nine hundred seventy-three".