2239919135989 has 2 divisors, whose sum is σ = 2239919135990. Its totient is φ = 2239919135988.

The previous prime is 2239919135959. The next prime is 2239919136001. The reversal of 2239919135989 is 9895319199322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1524274198225 + 715644937764 = 1234615^2 + 845958^2 .

It is a cyclic number.

It is not a de Polignac number, because 2239919135989 - 2⁵ = 2239919135957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2239919135959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1119959567994 + 1119959567995.

It is an arithmetic number, because the mean of its divisors is an integer number (1119959567995).

Almost surely, 2^{2239919135989} is an apocalyptic number.

It is an amenable number.

2239919135989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2239919135989 is an equidigital number, since it uses as much as digits as its factorization.

2239919135989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 85030560, while the sum is 70.

The spelling of 2239919135989 in words is "two trillion, two hundred thirty-nine billion, nine hundred nineteen million, one hundred thirty-five thousand, nine hundred eighty-nine".