33999411959 has 4 divisors (see below), whose sum is σ = 34145332416. Its totient is φ = 33853491504.

The previous prime is 33999411917. The next prime is 33999411973. The reversal of 33999411959 is 95911499933.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 33999411959 - 2²⁰ = 33998363383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33999411659) 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 in 3 ways as a sum of consecutive naturals, for example, 72959879 + ... + 72960344.

It is an arithmetic number, because the mean of its divisors is an integer number (8536333104).

Almost surely, 2^33999411959 is an apocalyptic number.

33999411959 is a deficient number, since it is larger than the sum of its proper divisors (145920457).

33999411959 is a wasteful number, since it uses less digits than its factorization.

33999411959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145920456.

The product of its digits is 10628820, while the sum is 62.

The spelling of 33999411959 in words is "thirty-three billion, nine hundred ninety-nine million, four hundred eleven thousand, nine hundred fifty-nine".