257211338283 has 24 divisors (see below), whose sum is σ = 391322360000. Its totient is φ = 162349244784.

The previous prime is 257211338227. The next prime is 257211338287. The reversal of 257211338283 is 382833112752.

257211338283 is a `hidden beast` number, since 2 + 57 + 211 + 3 + 382 + 8 + 3 = 666.

It is not a de Polignac number, because 257211338283 - 2¹³ = 257211330091 is a prime.

It is a super-3 number, since 3×257211338283³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (257211338287) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 184033 + ... + 740466.

Almost surely, 2^257211338283 is an apocalyptic number.

257211338283 is a deficient number, since it is larger than the sum of its proper divisors (134111021717).

257211338283 is a wasteful number, since it uses less digits than its factorization.

257211338283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926151 (or 926148 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The spelling of 257211338283 in words is "two hundred fifty-seven billion, two hundred eleven million, three hundred thirty-eight thousand, two hundred eighty-three".