257411086019 has 2 divisors, whose sum is σ = 257411086020. Its totient is φ = 257411086018.

The previous prime is 257411086001. The next prime is 257411086091. The reversal of 257411086019 is 910680114752.

Together with next prime (257411086091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-257411086019 is a prime.

It is a super-3 number, since 3×257411086019³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (257411086099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128705543009 + 128705543010.

It is an arithmetic number, because the mean of its divisors is an integer number (128705543010).

Almost surely, 2^257411086019 is an apocalyptic number.

257411086019 is a deficient number, since it is larger than the sum of its proper divisors (1).

257411086019 is an equidigital number, since it uses as much as digits as its factorization.

257411086019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 44.

The spelling of 257411086019 in words is "two hundred fifty-seven billion, four hundred eleven million, eighty-six thousand, nineteen".