2595660998389 has 2 divisors, whose sum is σ = 2595660998390. Its totient is φ = 2595660998388.

The previous prime is 2595660998339. The next prime is 2595660998429. The reversal of 2595660998389 is 9838990665952.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1708400615364 + 887260383025 = 1307058^2 + 941945^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2595660998389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2595660998339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1297830499194 + 1297830499195.

It is an arithmetic number, because the mean of its divisors is an integer number (1297830499195).

Almost surely, 2^{2595660998389} is an apocalyptic number.

It is an amenable number.

2595660998389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2595660998389 is an equidigital number, since it uses as much as digits as its factorization.

2595660998389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2267481600, while the sum is 79.

The spelling of 2595660998389 in words is "two trillion, five hundred ninety-five billion, six hundred sixty million, nine hundred ninety-eight thousand, three hundred eighty-nine".