257670968939 has 8 divisors (see below), whose sum is σ = 264182636592. Its totient is φ = 251170111360.

The previous prime is 257670968903. The next prime is 257670968953. The reversal of 257670968939 is 939869076752.

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

It is a cyclic number.

It is not a de Polignac number, because 257670968939 - 2¹⁶ = 257670903403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (257670968339) 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, 2654234 + ... + 2749599.

It is an arithmetic number, because the mean of its divisors is an integer number (33022829574).

Almost surely, 2^257670968939 is an apocalyptic number.

257670968939 is a deficient number, since it is larger than the sum of its proper divisors (6511667653).

257670968939 is a wasteful number, since it uses less digits than its factorization.

257670968939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5405037.

The product of its (nonzero) digits is 308629440, while the sum is 71.

The spelling of 257670968939 in words is "two hundred fifty-seven billion, six hundred seventy million, nine hundred sixty-eight thousand, nine hundred thirty-nine".