22817361949 has 2 divisors, whose sum is σ = 22817361950. Its totient is φ = 22817361948.

The previous prime is 22817361887. The next prime is 22817361967. The reversal of 22817361949 is 94916371822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21641352100 + 1176009849 = 147110^2 + 34293^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22817361949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22817361896 and 22817361905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22817361349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11408680974 + 11408680975.

It is an arithmetic number, because the mean of its divisors is an integer number (11408680975).

Almost surely, 2^22817361949 is an apocalyptic number.

It is an amenable number.

22817361949 is a deficient number, since it is larger than the sum of its proper divisors (1).

22817361949 is an equidigital number, since it uses as much as digits as its factorization.

22817361949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 52.

The spelling of 22817361949 in words is "twenty-two billion, eight hundred seventeen million, three hundred sixty-one thousand, nine hundred forty-nine".