8540512807 has 2 divisors, whose sum is σ = 8540512808. Its totient is φ = 8540512806.

The previous prime is 8540512801. The next prime is 8540512859. The reversal of 8540512807 is 7082150458.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8540512807 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8540512807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8540512801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4270256403 + 4270256404.

It is an arithmetic number, because the mean of its divisors is an integer number (4270256404).

Almost surely, 2^8540512807 is an apocalyptic number.

8540512807 is a deficient number, since it is larger than the sum of its proper divisors (1).

8540512807 is an equidigital number, since it uses as much as digits as its factorization.

8540512807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 89600, while the sum is 40.

The square root of 8540512807 is about 92414.8949412377. The cubic root of 8540512807 is about 2044.0647526505.

The spelling of 8540512807 in words is "eight billion, five hundred forty million, five hundred twelve thousand, eight hundred seven".