8541347842 has 16 divisors (see below), whose sum is σ = 13573946520. Its totient is φ = 4017005568.

The previous prime is 8541347831. The next prime is 8541347863. The reversal of 8541347842 is 2487431458.

It can be written as a sum of positive squares in 4 ways, for example, as 8038736281 + 502611561 = 89659^2 + 22419^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8541347792 and 8541347801.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19467 + ... + 132142.

Almost surely, 2^8541347842 is an apocalyptic number.

8541347842 is a deficient number, since it is larger than the sum of its proper divisors (5032598678).

8541347842 is a wasteful number, since it uses less digits than its factorization.

8541347842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153285.

The product of its digits is 860160, while the sum is 46.

The square root of 8541347842 is about 92419.4126901919. The cubic root of 8541347842 is about 2044.1313688683.

The spelling of 8541347842 in words is "eight billion, five hundred forty-one million, three hundred forty-seven thousand, eight hundred forty-two".