8468540191 has 4 divisors (see below), whose sum is σ = 8966689632. Its totient is φ = 7970390752.

The previous prime is 8468540159. The next prime is 8468540209. The reversal of 8468540191 is 1910458648.

8468540191 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 is a cyclic number.

It is not a de Polignac number, because 8468540191 - 2⁵ = 8468540159 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 (8468540791) 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, 249074695 + ... + 249074728.

It is an arithmetic number, because the mean of its divisors is an integer number (2241672408).

Almost surely, 2^8468540191 is an apocalyptic number.

8468540191 is a deficient number, since it is larger than the sum of its proper divisors (498149441).

8468540191 is a wasteful number, since it uses less digits than its factorization.

8468540191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498149440.

The product of its (nonzero) digits is 276480, while the sum is 46.

The square root of 8468540191 is about 92024.6716429893. The cubic root of 8468540191 is about 2038.3066326091.

The spelling of 8468540191 in words is "eight billion, four hundred sixty-eight million, five hundred forty thousand, one hundred ninety-one".