33979720339 has 2 divisors, whose sum is σ = 33979720340. Its totient is φ = 33979720338.

The previous prime is 33979720321. The next prime is 33979720349. The reversal of 33979720339 is 93302797933.

It is a strong prime.

It is an emirp because it is prime and its reverse (93302797933) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33979720339 - 2²¹ = 33977623187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 33979720339.

It is not a weakly prime, because it can be changed into another prime (33979720319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16989860169 + 16989860170.

It is an arithmetic number, because the mean of its divisors is an integer number (16989860170).

Almost surely, 2^33979720339 is an apocalyptic number.

33979720339 is a deficient number, since it is larger than the sum of its proper divisors (1).

33979720339 is an equidigital number, since it uses as much as digits as its factorization.

33979720339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5786802, while the sum is 55.

The spelling of 33979720339 in words is "thirty-three billion, nine hundred seventy-nine million, seven hundred twenty thousand, three hundred thirty-nine".