8125810757 has 2 divisors, whose sum is σ = 8125810758. Its totient is φ = 8125810756.

The previous prime is 8125810753. The next prime is 8125810831. The reversal of 8125810757 is 7570185218.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7842696481 + 283114276 = 88559^2 + 16826^2 .

It is a cyclic number.

It is not a de Polignac number, because 8125810757 - 2² = 8125810753 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8125810751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4062905378 + 4062905379.

It is an arithmetic number, because the mean of its divisors is an integer number (4062905379).

Almost surely, 2^8125810757 is an apocalyptic number.

It is an amenable number.

8125810757 is a deficient number, since it is larger than the sum of its proper divisors (1).

8125810757 is an equidigital number, since it uses as much as digits as its factorization.

8125810757 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 156800, while the sum is 44.

The square root of 8125810757 is about 90143.2790450847. The cubic root of 8125810757 is about 2010.4297454101.

The spelling of 8125810757 in words is "eight billion, one hundred twenty-five million, eight hundred ten thousand, seven hundred fifty-seven".