8540511797 has 2 divisors, whose sum is σ = 8540511798. Its totient is φ = 8540511796.

The previous prime is 8540511739. The next prime is 8540511817. The reversal of 8540511797 is 7971150458.

8540511797 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5477332081 + 3063179716 = 74009^2 + 55346^2 .

It is a cyclic number.

It is not a de Polignac number, because 8540511797 - 2⁸ = 8540511541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8540511097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4270255898 + 4270255899.

It is an arithmetic number, because the mean of its divisors is an integer number (4270255899).

Almost surely, 2^8540511797 is an apocalyptic number.

It is an amenable number.

8540511797 is a deficient number, since it is larger than the sum of its proper divisors (1).

8540511797 is an equidigital number, since it uses as much as digits as its factorization.

8540511797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 352800, while the sum is 47.

The square root of 8540511797 is about 92414.8894767504. The cubic root of 8540511797 is about 2044.0646720735.

The spelling of 8540511797 in words is "eight billion, five hundred forty million, five hundred eleven thousand, seven hundred ninety-seven".