857758000857757 has 2 divisors, whose sum is σ = 857758000857758. Its totient is φ = 857758000857756.

The previous prime is 857758000857733. The next prime is 857758000857847. The reversal of 857758000857757 is 757758000857758.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 626552412798841 + 231205588058916 = 25031029^2 + 15205446^2 .

It is a cyclic number.

It is not a de Polignac number, because 857758000857757 - 2⁷ = 857758000857629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (857758000887757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 428879000428878 + 428879000428879.

It is an arithmetic number, because the mean of its divisors is an integer number (428879000428879).

Almost surely, 2^{857758000857757} is an apocalyptic number.

It is an amenable number.

857758000857757 is a deficient number, since it is larger than the sum of its proper divisors (1).

857758000857757 is an equidigital number, since it uses as much as digits as its factorization.

857758000857757 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5378240000, while the sum is 79.

Subtracting from 857758000857757 its reverse (757758000857758), we obtain a palindrome (99999999999999).

The spelling of 857758000857757 in words is "eight hundred fifty-seven trillion, seven hundred fifty-eight billion, eight hundred fifty-seven thousand, seven hundred fifty-seven".