8540368109 has 32 divisors (see below), whose sum is σ = 10657194240. Its totient is φ = 6663969792.

The previous prime is 8540368069. The next prime is 8540368117. The reversal of 8540368109 is 9018630458.

It is a cyclic number.

It is not a de Polignac number, because 8540368109 - 2²⁰ = 8539319533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8540368109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8540368169) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2249717 + ... + 2253509.

It is an arithmetic number, because the mean of its divisors is an integer number (333037320).

Almost surely, 2^8540368109 is an apocalyptic number.

It is an amenable number.

8540368109 is a deficient number, since it is larger than the sum of its proper divisors (2116826131).

8540368109 is a wasteful number, since it uses less digits than its factorization.

8540368109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4149.

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 8540368109 is about 92414.1120662856. The cubic root of 8540368109 is about 2044.0532087008.

The spelling of 8540368109 in words is "eight billion, five hundred forty million, three hundred sixty-eight thousand, one hundred nine".