257136770299 has 2 divisors, whose sum is σ = 257136770300. Its totient is φ = 257136770298.

The previous prime is 257136770287. The next prime is 257136770321. The reversal of 257136770299 is 992077631752.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 257136770299 - 2²⁵ = 257103215867 is a prime.

It is a super-2 number, since 2×257136770299² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (257136770999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128568385149 + 128568385150.

It is an arithmetic number, because the mean of its divisors is an integer number (128568385150).

Almost surely, 2^257136770299 is an apocalyptic number.

257136770299 is a deficient number, since it is larger than the sum of its proper divisors (1).

257136770299 is an equidigital number, since it uses as much as digits as its factorization.

257136770299 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10001880, while the sum is 58.

The spelling of 257136770299 in words is "two hundred fifty-seven billion, one hundred thirty-six million, seven hundred seventy thousand, two hundred ninety-nine".