22878680049 has 27 divisors (see below), whose sum is σ = 33393357387. Its totient is φ = 15094238544.

The previous prime is 22878679997. The next prime is 22878680063. The reversal of 22878680049 is 94008687822.

The square root of 22878680049 is 151257.

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., 15332630625 + 7546049424 = 123825^2 + 86868^2 .

It is not a de Polignac number, because 22878680049 - 2¹⁷ = 22878548977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22878679977 and 22878680004.

It is not an unprimeable number, because it can be changed into a prime (22878780049) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 57628719 + ... + 57629115.

Almost surely, 2^22878680049 is an apocalyptic number.

22878680049 is the 151257-th square number.

22878680049 is the 75629-th centered octagonal number.

It is an amenable number.

22878680049 is a deficient number, since it is larger than the sum of its proper divisors (10514677338).

22878680049 is an frugal number, since it uses more digits than its factorization.

22878680049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054 (or 527 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 54.

The spelling of 22878680049 in words is "twenty-two billion, eight hundred seventy-eight million, six hundred eighty thousand, forty-nine".