257028043311 has 12 divisors (see below), whose sum is σ = 399821400888. Its totient is φ = 158171103504.

The previous prime is 257028043303. The next prime is 257028043357. The reversal of 257028043311 is 113340820752.

257028043311 is a `hidden beast` number, since 2 + 570 + 2 + 80 + 4 + 3 + 3 + 1 + 1 = 666.

257028043311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 257028043311 - 2³ = 257028043303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257028043711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1098410325 + ... + 1098410558.

It is an arithmetic number, because the mean of its divisors is an integer number (33318450074).

Almost surely, 2^257028043311 is an apocalyptic number.

257028043311 is a deficient number, since it is larger than the sum of its proper divisors (142793357577).

257028043311 is a wasteful number, since it uses less digits than its factorization.

257028043311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2196820902 (or 2196820899 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 257028043311 in words is "two hundred fifty-seven billion, twenty-eight million, forty-three thousand, three hundred eleven".