2239618897 has 2 divisors, whose sum is σ = 2239618898. Its totient is φ = 2239618896.

The previous prime is 2239618889. The next prime is 2239618907. The reversal of 2239618897 is 7988169322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1575216721 + 664402176 = 39689^2 + 25776^2 .

It is a cyclic number.

It is not a de Polignac number, because 2239618897 - 2³ = 2239618889 is a prime.

It is not a weakly prime, because it can be changed into another prime (2239618847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1119809448 + 1119809449.

It is an arithmetic number, because the mean of its divisors is an integer number (1119809449).

Almost surely, 2^2239618897 is an apocalyptic number.

It is an amenable number.

2239618897 is a deficient number, since it is larger than the sum of its proper divisors (1).

2239618897 is an equidigital number, since it uses as much as digits as its factorization.

2239618897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2612736, while the sum is 55.

The square root of 2239618897 is about 47324.6119582612. The cubic root of 2239618897 is about 1308.3523167011.

The spelling of 2239618897 in words is "two billion, two hundred thirty-nine million, six hundred eighteen thousand, eight hundred ninety-seven".