33979720319 has 2 divisors, whose sum is σ = 33979720320. Its totient is φ = 33979720318.

The previous prime is 33979720301. The next prime is 33979720321. The reversal of 33979720319 is 91302797933.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 33979720319 - 2²⁰ = 33978671743 is a prime.

It is a super-2 number, since 2×33979720319² (a number of 22 digits) contains 22 as substring.

Together with 33979720321, 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 (33979720339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16989860159 + 16989860160.

It is an arithmetic number, because the mean of its divisors is an integer number (16989860160).

Almost surely, 2^33979720319 is an apocalyptic number.

33979720319 is a deficient number, since it is larger than the sum of its proper divisors (1).

33979720319 is an equidigital number, since it uses as much as digits as its factorization.

33979720319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1928934, while the sum is 53.

The spelling of 33979720319 in words is "thirty-three billion, nine hundred seventy-nine million, seven hundred twenty thousand, three hundred nineteen".