255342207647 has 2 divisors, whose sum is σ = 255342207648. Its totient is φ = 255342207646.

The previous prime is 255342207623. The next prime is 255342207667. The reversal of 255342207647 is 746702243552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255342207647 - 2⁸ = 255342207391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255342207667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127671103823 + 127671103824.

It is an arithmetic number, because the mean of its divisors is an integer number (127671103824).

Almost surely, 2^255342207647 is an apocalyptic number.

255342207647 is a deficient number, since it is larger than the sum of its proper divisors (1).

255342207647 is an equidigital number, since it uses as much as digits as its factorization.

255342207647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2822400, while the sum is 47.

The spelling of 255342207647 in words is "two hundred fifty-five billion, three hundred forty-two million, two hundred seven thousand, six hundred forty-seven".