5218318739 has 2 divisors, whose sum is σ = 5218318740. Its totient is φ = 5218318738.

The previous prime is 5218318733. The next prime is 5218318741. The reversal of 5218318739 is 9378138125.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5218318739 - 2⁴ = 5218318723 is a prime.

Together with 5218318741, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 5218318693 and 5218318702.

It is not a weakly prime, because it can be changed into another prime (5218318733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2609159369 + 2609159370.

It is an arithmetic number, because the mean of its divisors is an integer number (2609159370).

Almost surely, 2^5218318739 is an apocalyptic number.

5218318739 is a deficient number, since it is larger than the sum of its proper divisors (1).

5218318739 is an equidigital number, since it uses as much as digits as its factorization.

5218318739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 47.

The square root of 5218318739 is about 72237.9314418679. The cubic root of 5218318739 is about 1734.5102376743.

The spelling of 5218318739 in words is "five billion, two hundred eighteen million, three hundred eighteen thousand, seven hundred thirty-nine".