257085896259 has 8 divisors (see below), whose sum is σ = 343252698880. Its totient is φ = 171154845576.

The previous prime is 257085896191. The next prime is 257085896261. The reversal of 257085896259 is 952698580752.

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

It is not a de Polignac number, because 257085896259 - 2⁸ = 257085896003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 257085896259.

It is not an unprimeable number, because it can be changed into a prime (257085896159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58935439 + ... + 58939800.

It is an arithmetic number, because the mean of its divisors is an integer number (42906587360).

Almost surely, 2^257085896259 is an apocalyptic number.

257085896259 is a deficient number, since it is larger than the sum of its proper divisors (86166802621).

257085896259 is a wasteful number, since it uses less digits than its factorization.

257085896259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117875969.

The product of its (nonzero) digits is 108864000, while the sum is 66.

The spelling of 257085896259 in words is "two hundred fifty-seven billion, eighty-five million, eight hundred ninety-six thousand, two hundred fifty-nine".