22617748973 has 2 divisors, whose sum is σ = 22617748974. Its totient is φ = 22617748972.

The previous prime is 22617748963. The next prime is 22617748997. The reversal of 22617748973 is 37984771622.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22607528164 + 10220809 = 150358^2 + 3197^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22617748973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22617748963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11308874486 + 11308874487.

It is an arithmetic number, because the mean of its divisors is an integer number (11308874487).

Almost surely, 2^22617748973 is an apocalyptic number.

It is an amenable number.

22617748973 is a deficient number, since it is larger than the sum of its proper divisors (1).

22617748973 is an equidigital number, since it uses as much as digits as its factorization.

22617748973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7112448, while the sum is 56.

The spelling of 22617748973 in words is "twenty-two billion, six hundred seventeen million, seven hundred forty-eight thousand, nine hundred seventy-three".