33820408079 has 2 divisors, whose sum is σ = 33820408080. Its totient is φ = 33820408078.

The previous prime is 33820408067. The next prime is 33820408081. The reversal of 33820408079 is 97080402833.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33820408079 is a prime.

It is a super-2 number, since 2×33820408079² (a number of 22 digits) contains 22 as substring.

Together with 33820408081, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33820408019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16910204039 + 16910204040.

It is an arithmetic number, because the mean of its divisors is an integer number (16910204040).

Almost surely, 2^33820408079 is an apocalyptic number.

33820408079 is a deficient number, since it is larger than the sum of its proper divisors (1).

33820408079 is an equidigital number, since it uses as much as digits as its factorization.

33820408079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 33820408079 in words is "thirty-three billion, eight hundred twenty million, four hundred eight thousand, seventy-nine".