8540179491 has 8 divisors (see below), whose sum is σ = 11754225664. Its totient is φ = 5509793160.

The previous prime is 8540179481. The next prime is 8540179499. The reversal of 8540179491 is 1949710458.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8540179491 - 2⁷ = 8540179363 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8540179491.

It is not an unprimeable number, because it can be changed into a prime (8540179499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45914851 + ... + 45915036.

It is an arithmetic number, because the mean of its divisors is an integer number (1469278208).

Almost surely, 2^8540179491 is an apocalyptic number.

8540179491 is a deficient number, since it is larger than the sum of its proper divisors (3214046173).

8540179491 is a wasteful number, since it uses less digits than its factorization.

8540179491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91829921.

The product of its (nonzero) digits is 362880, while the sum is 48.

The square root of 8540179491 is about 92413.0915563374. The cubic root of 8540179491 is about 2044.0381606348.

The spelling of 8540179491 in words is "eight billion, five hundred forty million, one hundred seventy-nine thousand, four hundred ninety-one".