33939518713 has 2 divisors, whose sum is σ = 33939518714. Its totient is φ = 33939518712.

The previous prime is 33939518707. The next prime is 33939518741. The reversal of 33939518713 is 31781593933.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21652239609 + 12287279104 = 147147^2 + 110848^2 .

It is an emirp because it is prime and its reverse (31781593933) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33939518713 is a prime.

It is not a weakly prime, because it can be changed into another prime (33939518783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16969759356 + 16969759357.

It is an arithmetic number, because the mean of its divisors is an integer number (16969759357).

Almost surely, 2^33939518713 is an apocalyptic number.

It is an amenable number.

33939518713 is a deficient number, since it is larger than the sum of its proper divisors (1).

33939518713 is an equidigital number, since it uses as much as digits as its factorization.

33939518713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1837080, while the sum is 52.

The spelling of 33939518713 in words is "thirty-three billion, nine hundred thirty-nine million, five hundred eighteen thousand, seven hundred thirteen".