8540512859 has 2 divisors, whose sum is σ = 8540512860. Its totient is φ = 8540512858.

The previous prime is 8540512807. The next prime is 8540512867. The reversal of 8540512859 is 9582150458.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8540512859 - 2¹² = 8540508763 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (8540512159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4270256429 + 4270256430.

It is an arithmetic number, because the mean of its divisors is an integer number (4270256430).

Almost surely, 2^8540512859 is an apocalyptic number.

8540512859 is a deficient number, since it is larger than the sum of its proper divisors (1).

8540512859 is an equidigital number, since it uses as much as digits as its factorization.

8540512859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576000, while the sum is 47.

The square root of 8540512859 is about 92414.8952225776. The cubic root of 8540512859 is about 2044.0647567990.

The spelling of 8540512859 in words is "eight billion, five hundred forty million, five hundred twelve thousand, eight hundred fifty-nine".