33979720318 has 32 divisors (see below), whose sum is σ = 52233984000. Its totient is φ = 16574681760.

The previous prime is 33979720301. The next prime is 33979720319. The reversal of 33979720318 is 81302797933.

It is a happy number.

It is a super-2 number, since 2×33979720318² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33979720319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4943388 + ... + 4950256.

It is an arithmetic number, because the mean of its divisors is an integer number (1632312000).

Almost surely, 2^33979720318 is an apocalyptic number.

33979720318 is a deficient number, since it is larger than the sum of its proper divisors (18254263682).

33979720318 is a wasteful number, since it uses less digits than its factorization.

33979720318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7320.

The product of its (nonzero) digits is 1714608, while the sum is 52.

The spelling of 33979720318 in words is "thirty-three billion, nine hundred seventy-nine million, seven hundred twenty thousand, three hundred eighteen".