33768721339 has 2 divisors, whose sum is σ = 33768721340. Its totient is φ = 33768721338.

The previous prime is 33768721271. The next prime is 33768721361. The reversal of 33768721339 is 93312786733.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33768721339 is a prime.

It is a super-2 number, since 2×33768721339² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33768721379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16884360669 + 16884360670.

It is an arithmetic number, because the mean of its divisors is an integer number (16884360670).

Almost surely, 2^33768721339 is an apocalyptic number.

33768721339 is a deficient number, since it is larger than the sum of its proper divisors (1).

33768721339 is an equidigital number, since it uses as much as digits as its factorization.

33768721339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3429216, while the sum is 52.

The spelling of 33768721339 in words is "thirty-three billion, seven hundred sixty-eight million, seven hundred twenty-one thousand, three hundred thirty-nine".