8539742017 has 4 divisors (see below), whose sum is σ = 8545151920. Its totient is φ = 8534332116.

The previous prime is 8539741913. The next prime is 8539742023. The reversal of 8539742017 is 7102479358.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8539742017 is a prime.

It is a pancake number, because a pancake can be divided into 8539742017 parts by 130688 straight cuts.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8539740017) 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, 2702583 + ... + 2705740.

It is an arithmetic number, because the mean of its divisors is an integer number (2136287980).

Almost surely, 2^8539742017 is an apocalyptic number.

It is an amenable number.

8539742017 is a deficient number, since it is larger than the sum of its proper divisors (5409903).

8539742017 is a wasteful number, since it uses less digits than its factorization.

8539742017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5409902.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 8539742017 is about 92410.7245778324. The cubic root of 8539742017 is about 2044.0032578236.

The spelling of 8539742017 in words is "eight billion, five hundred thirty-nine million, seven hundred forty-two thousand, seventeen".