28022338593769 has 45 divisors (see below), whose sum is σ = 32263073123673. Its totient is φ = 24327920787456.

The previous prime is 28022338593761. The next prime is 28022338593773. The reversal of 28022338593769 is 96739583322082.

The square root of 28022338593769 is 5293613.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 22 ways, for example, as 22228631825625 + 5793706768144 = 4714725^2 + 2407012^2 .

It is not a de Polignac number, because 28022338593769 - 2³ = 28022338593761 is a prime.

It is a super-2 number, since 2×28022338593769² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28022338593761) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 19888103337 + ... + 19888104745.

Almost surely, 2^{28022338593769} is an apocalyptic number.

28022338593769 is the 5293613-rd square number.

28022338593769 is the 2646807-th centered octagonal number.

It is an amenable number.

28022338593769 is a deficient number, since it is larger than the sum of its proper divisors (4240734529904).

28022338593769 is an frugal number, since it uses more digits than its factorization.

28022338593769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2912 (or 1439 counting only the distinct ones).

The product of its (nonzero) digits is 235146240, while the sum is 67.

The spelling of 28022338593769 in words is "twenty-eight trillion, twenty-two billion, three hundred thirty-eight million, five hundred ninety-three thousand, seven hundred sixty-nine".