33684420868 has 24 divisors (see below), whose sum is σ = 68180519232. Its totient is φ = 14262249504.

The previous prime is 33684420863. The next prime is 33684420899. The reversal of 33684420868 is 86802448633.

It is a super-2 number, since 2×33684420868² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33684420863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7244755 + ... + 7249402.

It is an arithmetic number, because the mean of its divisors is an integer number (2840854968).

Almost surely, 2^33684420868 is an apocalyptic number.

It is an amenable number.

33684420868 is an abundant number, since it is smaller than the sum of its proper divisors (34496098364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33684420868 is a wasteful number, since it uses less digits than its factorization.

33684420868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14494251 (or 14494249 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 52.

The spelling of 33684420868 in words is "thirty-three billion, six hundred eighty-four million, four hundred twenty thousand, eight hundred sixty-eight".