5306721333539 has 2 divisors, whose sum is σ = 5306721333540. Its totient is φ = 5306721333538.

The previous prime is 5306721333491. The next prime is 5306721333607. The reversal of 5306721333539 is 9353331276035.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5306721333539 - 2⁸ = 5306721333283 is a prime.

It is a super-2 number, since 2×5306721333539² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5306721339539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2653360666769 + 2653360666770.

It is an arithmetic number, because the mean of its divisors is an integer number (2653360666770).

Almost surely, 2^{5306721333539} is an apocalyptic number.

5306721333539 is a deficient number, since it is larger than the sum of its proper divisors (1).

5306721333539 is an equidigital number, since it uses as much as digits as its factorization.

5306721333539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4592700, while the sum is 50.

The spelling of 5306721333539 in words is "five trillion, three hundred six billion, seven hundred twenty-one million, three hundred thirty-three thousand, five hundred thirty-nine".