8540380067 has 4 divisors (see below), whose sum is σ = 8544927120. Its totient is φ = 8535833016.

The previous prime is 8540380021. The next prime is 8540380087. The reversal of 8540380067 is 7600830458.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 8540380067 - 2⁶ = 8540380003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8540380007) 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, 2270708 + ... + 2274465.

It is an arithmetic number, because the mean of its divisors is an integer number (2136231780).

Almost surely, 2^8540380067 is an apocalyptic number.

8540380067 is a deficient number, since it is larger than the sum of its proper divisors (4547053).

8540380067 is a wasteful number, since it uses less digits than its factorization.

8540380067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4547052.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 8540380067 is about 92414.1767641740. The cubic root of 8540380067 is about 2044.0541627102.

The spelling of 8540380067 in words is "eight billion, five hundred forty million, three hundred eighty thousand, sixty-seven".