255973388747 has 2 divisors, whose sum is σ = 255973388748. Its totient is φ = 255973388746.

The previous prime is 255973388701. The next prime is 255973388809. The reversal of 255973388747 is 747883379552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255973388747 - 2¹⁰ = 255973387723 is a prime.

It is not a weakly prime, because it can be changed into another prime (255973388947) 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, 127986694373 + 127986694374.

It is an arithmetic number, because the mean of its divisors is an integer number (127986694374).

Almost surely, 2^255973388747 is an apocalyptic number.

255973388747 is a deficient number, since it is larger than the sum of its proper divisors (1).

255973388747 is an equidigital number, since it uses as much as digits as its factorization.

255973388747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 355622400, while the sum is 68.

The spelling of 255973388747 in words is "two hundred fifty-five billion, nine hundred seventy-three million, three hundred eighty-eight thousand, seven hundred forty-seven".