8526540857 has 2 divisors, whose sum is σ = 8526540858. Its totient is φ = 8526540856.

The previous prime is 8526540853. The next prime is 8526540923. The reversal of 8526540857 is 7580456258.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6044907001 + 2481633856 = 77749^2 + 49816^2 .

It is a cyclic number.

It is not a de Polignac number, because 8526540857 - 2² = 8526540853 is a prime.

It is not a weakly prime, because it can be changed into another prime (8526540853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4263270428 + 4263270429.

It is an arithmetic number, because the mean of its divisors is an integer number (4263270429).

Almost surely, 2^8526540857 is an apocalyptic number.

It is an amenable number.

8526540857 is a deficient number, since it is larger than the sum of its proper divisors (1).

8526540857 is an equidigital number, since it uses as much as digits as its factorization.

8526540857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688000, while the sum is 50.

The square root of 8526540857 is about 92339.2703945618. The cubic root of 8526540857 is about 2042.9494738432.

The spelling of 8526540857 in words is "eight billion, five hundred twenty-six million, five hundred forty thousand, eight hundred fifty-seven".