22528591469 has 2 divisors, whose sum is σ = 22528591470. Its totient is φ = 22528591468.

The previous prime is 22528591457. The next prime is 22528591489. The reversal of 22528591469 is 96419582522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19380259369 + 3148332100 = 139213^2 + 56110^2 .

It is a cyclic number.

It is not a de Polignac number, because 22528591469 - 2²⁰ = 22527542893 is a prime.

It is a super-2 number, since 2×22528591469² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22528591469.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22528591489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11264295734 + 11264295735.

It is an arithmetic number, because the mean of its divisors is an integer number (11264295735).

Almost surely, 2^22528591469 is an apocalyptic number.

It is an amenable number.

22528591469 is a deficient number, since it is larger than the sum of its proper divisors (1).

22528591469 is an equidigital number, since it uses as much as digits as its factorization.

22528591469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3110400, while the sum is 53.

The spelling of 22528591469 in words is "twenty-two billion, five hundred twenty-eight million, five hundred ninety-one thousand, four hundred sixty-nine".