22747577329 has 9 divisors (see below), whose sum is σ = 23249110987. Its totient is φ = 22256648464.

The previous prime is 22747577291. The next prime is 22747577339. The reversal of 22747577329 is 92377574722.

The square root of 22747577329 is 150823.

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

It can be written as a sum of positive squares in only one way, i.e., 12819447729 + 9928129600 = 113223^2 + 99640^2 .

It is not a de Polignac number, because 22747577329 - 2⁷ = 22747577201 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 22747577329.

It is not an unprimeable number, because it can be changed into a prime (22747577339) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7087077 + ... + 7090285.

Almost surely, 2^22747577329 is an apocalyptic number.

22747577329 is the 150823-rd square number.

22747577329 is the 75412-nd centered octagonal number.

It is an amenable number.

22747577329 is a deficient number, since it is larger than the sum of its proper divisors (501533658).

22747577329 is an frugal number, since it uses more digits than its factorization.

22747577329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6512 (or 3256 counting only the distinct ones).

The product of its digits is 10372320, while the sum is 55.

The spelling of 22747577329 in words is "twenty-two billion, seven hundred forty-seven million, five hundred seventy-seven thousand, three hundred twenty-nine".