8000857757 has 2 divisors, whose sum is σ = 8000857758. Its totient is φ = 8000857756.

The previous prime is 8000857741. The next prime is 8000857759. The reversal of 8000857757 is 7577580008.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6337115236 + 1663742521 = 79606^2 + 40789^2 .

It is a cyclic number.

It is not a de Polignac number, because 8000857757 - 2⁴ = 8000857741 is a prime.

Together with 8000857759, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8000857759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4000428878 + 4000428879.

It is an arithmetic number, because the mean of its divisors is an integer number (4000428879).

Almost surely, 2^8000857757 is an apocalyptic number.

It is an amenable number.

8000857757 is a deficient number, since it is larger than the sum of its proper divisors (1).

8000857757 is an equidigital number, since it uses as much as digits as its factorization.

8000857757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 548800, while the sum is 47.

The square root of 8000857757 is about 89447.5139788692. The cubic root of 8000857757 is about 2000.0714771955.

The spelling of 8000857757 in words is "eight billion, eight hundred fifty-seven thousand, seven hundred fifty-seven".