255758345857 has 8 divisors (see below), whose sum is σ = 292300341632. Its totient is φ = 219217622400.

The previous prime is 255758345839. The next prime is 255758345879. The reversal of 255758345857 is 758543857552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 255758345857 - 2³¹ = 253610862209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255758345807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160732 + ... + 733042.

It is an arithmetic number, because the mean of its divisors is an integer number (36537542704).

Almost surely, 2^255758345857 is an apocalyptic number.

It is an amenable number.

255758345857 is a deficient number, since it is larger than the sum of its proper divisors (36541995775).

255758345857 is an equidigital number, since it uses as much as digits as its factorization.

255758345857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636159.

The product of its digits is 235200000, while the sum is 64.

The spelling of 255758345857 in words is "two hundred fifty-five billion, seven hundred fifty-eight million, three hundred forty-five thousand, eight hundred fifty-seven".