8239543013 has 8 divisors (see below), whose sum is σ = 8882737248. Its totient is φ = 7597689264.

The previous prime is 8239543007. The next prime is 8239543073. The reversal of 8239543013 is 3103459328.

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

It is a cyclic number.

It is not a de Polignac number, because 8239543013 - 2⁸ = 8239542757 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 (8239543073) 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, 322331 + ... + 346952.

It is an arithmetic number, because the mean of its divisors is an integer number (1110342156).

Almost surely, 2^8239543013 is an apocalyptic number.

It is an amenable number.

8239543013 is a deficient number, since it is larger than the sum of its proper divisors (643194235).

8239543013 is a wasteful number, since it uses less digits than its factorization.

8239543013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670243.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 8239543013 is about 90771.9285517279. The cubic root of 8239543013 is about 2019.7659282577.

The spelling of 8239543013 in words is "eight billion, two hundred thirty-nine million, five hundred forty-three thousand, thirteen".