257133594957 has 8 divisors (see below), whose sum is σ = 360889256160. Its totient is φ = 162400165200.

The previous prime is 257133594953. The next prime is 257133594967. The reversal of 257133594957 is 759495331752.

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

It is not a de Polignac number, because 257133594957 - 2² = 257133594953 is a prime.

It is a super-2 number, since 2×257133594957² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 257133594957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257133594953) 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 in 7 ways as a sum of consecutive naturals, for example, 2255557794 + ... + 2255557907.

It is an arithmetic number, because the mean of its divisors is an integer number (45111157020).

Almost surely, 2^257133594957 is an apocalyptic number.

It is an amenable number.

257133594957 is a deficient number, since it is larger than the sum of its proper divisors (103755661203).

257133594957 is a wasteful number, since it uses less digits than its factorization.

257133594957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4511115723.

The product of its digits is 35721000, while the sum is 60.

The spelling of 257133594957 in words is "two hundred fifty-seven billion, one hundred thirty-three million, five hundred ninety-four thousand, nine hundred fifty-seven".