255392749687 has 2 divisors, whose sum is σ = 255392749688. Its totient is φ = 255392749686.

The previous prime is 255392749681. The next prime is 255392749741. The reversal of 255392749687 is 786947293552.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255392749687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255392749681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127696374843 + 127696374844.

It is an arithmetic number, because the mean of its divisors is an integer number (127696374844).

Almost surely, 2^255392749687 is an apocalyptic number.

255392749687 is a deficient number, since it is larger than the sum of its proper divisors (1).

255392749687 is an equidigital number, since it uses as much as digits as its factorization.

255392749687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 228614400, while the sum is 67.

The spelling of 255392749687 in words is "two hundred fifty-five billion, three hundred ninety-two million, seven hundred forty-nine thousand, six hundred eighty-seven".