33680029689 has 32 divisors (see below), whose sum is σ = 52844359680. Its totient is φ = 21127392000.

The previous prime is 33680029681. The next prime is 33680029703. The reversal of 33680029689 is 98692008633.

It is not a de Polignac number, because 33680029689 - 2³ = 33680029681 is a prime.

It is a super-2 number, since 2×33680029689² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (33680029681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2872539 + ... + 2884239.

It is an arithmetic number, because the mean of its divisors is an integer number (1651386240).

Almost surely, 2^33680029689 is an apocalyptic number.

It is an amenable number.

33680029689 is a deficient number, since it is larger than the sum of its proper divisors (19164329991).

33680029689 is a wasteful number, since it uses less digits than its factorization.

33680029689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17998 (or 17992 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The spelling of 33680029689 in words is "thirty-three billion, six hundred eighty million, twenty-nine thousand, six hundred eighty-nine".