8541547449 has 8 divisors (see below), whose sum is σ = 11395211520. Its totient is φ = 5691124176.

The previous prime is 8541547429. The next prime is 8541547463. The reversal of 8541547449 is 9447451458.

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

It is not a de Polignac number, because 8541547449 - 2⁷ = 8541547321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8541547429) 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, 804042 + ... + 814595.

It is an arithmetic number, because the mean of its divisors is an integer number (1424401440).

Almost surely, 2^8541547449 is an apocalyptic number.

It is an amenable number.

8541547449 is a deficient number, since it is larger than the sum of its proper divisors (2853664071).

8541547449 is a wasteful number, since it uses less digits than its factorization.

8541547449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620399.

The product of its digits is 3225600, while the sum is 51.

The square root of 8541547449 is about 92420.4925814616. The cubic root of 8541547449 is about 2044.1472921847.

The spelling of 8541547449 in words is "eight billion, five hundred forty-one million, five hundred forty-seven thousand, four hundred forty-nine".