257582985675 has 24 divisors (see below), whose sum is σ = 425958570240. Its totient is φ = 137349194400.

The previous prime is 257582985631. The next prime is 257582985689. The reversal of 257582985675 is 576589285752.

It is not a de Polignac number, because 257582985675 - 2¹⁰ = 257582984651 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12786 + ... + 717864.

It is an arithmetic number, because the mean of its divisors is an integer number (17748273760).

Almost surely, 2^257582985675 is an apocalyptic number.

257582985675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

257582985675 is a deficient number, since it is larger than the sum of its proper divisors (168375584565).

257582985675 is a wasteful number, since it uses less digits than its factorization.

257582985675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709963 (or 709958 counting only the distinct ones).

The product of its digits is 423360000, while the sum is 69.

The spelling of 257582985675 in words is "two hundred fifty-seven billion, five hundred eighty-two million, nine hundred eighty-five thousand, six hundred seventy-five".