22851722573 has 2 divisors, whose sum is σ = 22851722574. Its totient is φ = 22851722572.

The previous prime is 22851722563. The next prime is 22851722639. The reversal of 22851722573 is 37522715822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14884732009 + 7966990564 = 122003^2 + 89258^2 .

It is a cyclic number.

It is not a de Polignac number, because 22851722573 - 2⁸ = 22851722317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22851722513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11425861286 + 11425861287.

It is an arithmetic number, because the mean of its divisors is an integer number (11425861287).

Almost surely, 2^22851722573 is an apocalyptic number.

It is an amenable number.

22851722573 is a deficient number, since it is larger than the sum of its proper divisors (1).

22851722573 is an equidigital number, since it uses as much as digits as its factorization.

22851722573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 470400, while the sum is 44.

The spelling of 22851722573 in words is "twenty-two billion, eight hundred fifty-one million, seven hundred twenty-two thousand, five hundred seventy-three".