2655786239 has 2 divisors, whose sum is σ = 2655786240. Its totient is φ = 2655786238.

The previous prime is 2655786197. The next prime is 2655786251. The reversal of 2655786239 is 9326875562.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2655786239 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2655786269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1327893119 + 1327893120.

It is an arithmetic number, because the mean of its divisors is an integer number (1327893120).

Almost surely, 2^2655786239 is an apocalyptic number.

2655786239 is a deficient number, since it is larger than the sum of its proper divisors (1).

2655786239 is an equidigital number, since it uses as much as digits as its factorization.

2655786239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5443200, while the sum is 53.

The square root of 2655786239 is about 51534.3209812645. The cubic root of 2655786239 is about 1384.8339609892.

The spelling of 2655786239 in words is "two billion, six hundred fifty-five million, seven hundred eighty-six thousand, two hundred thirty-nine".