22778829469 has 24 divisors (see below), whose sum is σ = 25304431040. Its totient is φ = 20488628160.

The previous prime is 22778829457. The next prime is 22778829473. The reversal of 22778829469 is 96492887722.

It is not a de Polignac number, because 22778829469 - 2²⁵ = 22745275037 is a prime.

It is a super-2 number, since 2×22778829469² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22778829469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22778899469) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5262184 + ... + 5266510.

Almost surely, 2^22778829469 is an apocalyptic number.

It is an amenable number.

22778829469 is a deficient number, since it is larger than the sum of its proper divisors (2525601571).

22778829469 is a wasteful number, since it uses less digits than its factorization.

22778829469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4801 (or 4790 counting only the distinct ones).

The product of its digits is 48771072, while the sum is 64.

The spelling of 22778829469 in words is "twenty-two billion, seven hundred seventy-eight million, eight hundred twenty-nine thousand, four hundred sixty-nine".