257281828183 has 2 divisors, whose sum is σ = 257281828184. Its totient is φ = 257281828182.

The previous prime is 257281828121. The next prime is 257281828259. The reversal of 257281828183 is 381828182752.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-257281828183 is a prime.

It is a super-2 number, since 2×257281828183² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (257281822183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128640914091 + 128640914092.

It is an arithmetic number, because the mean of its divisors is an integer number (128640914092).

Almost surely, 2^257281828183 is an apocalyptic number.

257281828183 is a deficient number, since it is larger than the sum of its proper divisors (1).

257281828183 is an equidigital number, since it uses as much as digits as its factorization.

257281828183 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3440640, while the sum is 55.

The spelling of 257281828183 in words is "two hundred fifty-seven billion, two hundred eighty-one million, eight hundred twenty-eight thousand, one hundred eighty-three".