257459541187 has 2 divisors, whose sum is σ = 257459541188. Its totient is φ = 257459541186.

The previous prime is 257459541083. The next prime is 257459541193. The reversal of 257459541187 is 781145954752.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 257459541187 - 2²⁷ = 257325323459 is a prime.

It is a super-4 number, since 4×257459541187⁴ (a number of 47 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (257453541187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128729770593 + 128729770594.

It is an arithmetic number, because the mean of its divisors is an integer number (128729770594).

Almost surely, 2^257459541187 is an apocalyptic number.

257459541187 is a deficient number, since it is larger than the sum of its proper divisors (1).

257459541187 is an equidigital number, since it uses as much as digits as its factorization.

257459541187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112000, while the sum is 58.

The spelling of 257459541187 in words is "two hundred fifty-seven billion, four hundred fifty-nine million, five hundred forty-one thousand, one hundred eighty-seven".