5309842039 has 4 divisors (see below), whose sum is σ = 5312463624. Its totient is φ = 5307220456.

The previous prime is 5309842019. The next prime is 5309842081. The reversal of 5309842039 is 9302489035.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5309842039 - 2⁹ = 5309841527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5309841986 and 5309842004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5309842009) 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, 1307752 + ... + 1311805.

It is an arithmetic number, because the mean of its divisors is an integer number (1328115906).

Almost surely, 2^5309842039 is an apocalyptic number.

5309842039 is a deficient number, since it is larger than the sum of its proper divisors (2621585).

5309842039 is a wasteful number, since it uses less digits than its factorization.

5309842039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2621584.

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 5309842039 is about 72868.6629423101. The cubic root of 5309842039 is about 1744.5919620218.

The spelling of 5309842039 in words is "five billion, three hundred nine million, eight hundred forty-two thousand, thirty-nine".