22727539573 has 6 divisors (see below), whose sum is σ = 22768354754. Its totient is φ = 22686737184.

The previous prime is 22727539559. The next prime is 22727539579. The reversal of 22727539573 is 37593572722.

It can be written as a sum of positive squares in 3 ways, for example, as 1530217924 + 21197321649 = 39118^2 + 145593^2 .

It is not a de Polignac number, because 22727539573 - 2¹³ = 22727531381 is a prime.

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 22727539573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22727539579) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3729513 + ... + 3735601.

Almost surely, 2^22727539573 is an apocalyptic number.

It is an amenable number.

22727539573 is a deficient number, since it is larger than the sum of its proper divisors (40815181).

22727539573 is an frugal number, since it uses more digits than its factorization.

22727539573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12791 (or 6702 counting only the distinct ones).

The product of its digits is 5556600, while the sum is 52.

The spelling of 22727539573 in words is "twenty-two billion, seven hundred twenty-seven million, five hundred thirty-nine thousand, five hundred seventy-three".