22878316249 has 2 divisors, whose sum is σ = 22878316250. Its totient is φ = 22878316248.

The previous prime is 22878316213. The next prime is 22878316259. The reversal of 22878316249 is 94261387822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15106130649 + 7772185600 = 122907^2 + 88160^2 .

It is a cyclic number.

It is not a de Polignac number, because 22878316249 - 2⁷ = 22878316121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22878316196 and 22878316205.

It is not a weakly prime, because it can be changed into another prime (22878316259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11439158124 + 11439158125.

It is an arithmetic number, because the mean of its divisors is an integer number (11439158125).

Almost surely, 2^22878316249 is an apocalyptic number.

It is an amenable number.

22878316249 is a deficient number, since it is larger than the sum of its proper divisors (1).

22878316249 is an equidigital number, since it uses as much as digits as its factorization.

22878316249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2322432, while the sum is 52.

The spelling of 22878316249 in words is "twenty-two billion, eight hundred seventy-eight million, three hundred sixteen thousand, two hundred forty-nine".