22977405889 has 9 divisors (see below), whose sum is σ = 23801605347. Its totient is φ = 22180837224.

The previous prime is 22977405883. The next prime is 22977405953. The reversal of 22977405889 is 98850477922.

The square root of 22977405889 is 151583.

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., 12048794289 + 10928611600 = 109767^2 + 104540^2 .

It is not a de Polignac number, because 22977405889 - 2⁷ = 22977405761 is a prime.

It is a super-2 number, since 2×22977405889² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22977405883) 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, 4393294 + ... + 4398520.

Almost surely, 2^22977405889 is an apocalyptic number.

22977405889 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

22977405889 is the 151583-rd square number.

22977405889 is the 75792-nd centered octagonal number.

It is an amenable number.

22977405889 is a deficient number, since it is larger than the sum of its proper divisors (824199458).

22977405889 is an frugal number, since it uses more digits than its factorization.

22977405889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10512 (or 5256 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 61.

The spelling of 22977405889 in words is "twenty-two billion, nine hundred seventy-seven million, four hundred five thousand, eight hundred eighty-nine".