8540077717 has 4 divisors (see below), whose sum is σ = 8615653740. Its totient is φ = 8464501696.

The previous prime is 8540077697. The next prime is 8540077753. The reversal of 8540077717 is 7177700458.

It is a happy number.

8540077717 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 234671761 + 8305405956 = 15319^2 + 91134^2 .

It is a cyclic number.

It is not a de Polignac number, because 8540077717 - 2¹⁵ = 8540044949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8540074717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37787842 + ... + 37788067.

It is an arithmetic number, because the mean of its divisors is an integer number (2153913435).

Almost surely, 2^8540077717 is an apocalyptic number.

It is an amenable number.

8540077717 is a deficient number, since it is larger than the sum of its proper divisors (75576023).

8540077717 is a wasteful number, since it uses less digits than its factorization.

8540077717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75576022.

The product of its (nonzero) digits is 384160, while the sum is 46.

The square root of 8540077717 is about 92412.5409076063. The cubic root of 8540077717 is about 2044.0300409473.

The spelling of 8540077717 in words is "eight billion, five hundred forty million, seventy-seven thousand, seven hundred seventeen".