255342791939 has 2 divisors, whose sum is σ = 255342791940. Its totient is φ = 255342791938.

The previous prime is 255342791903. The next prime is 255342791941. The reversal of 255342791939 is 939197243552.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255342791939 is a prime.

Together with 255342791941, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (255342791959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127671395969 + 127671395970.

It is an arithmetic number, because the mean of its divisors is an integer number (127671395970).

Almost surely, 2^255342791939 is an apocalyptic number.

255342791939 is a deficient number, since it is larger than the sum of its proper divisors (1).

255342791939 is an equidigital number, since it uses as much as digits as its factorization.

255342791939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18370800, while the sum is 59.

The spelling of 255342791939 in words is "two hundred fifty-five billion, three hundred forty-two million, seven hundred ninety-one thousand, nine hundred thirty-nine".