33684612972 has 48 divisors (see below), whose sum is σ = 79169983200. Its totient is φ = 11146498048.

The previous prime is 33684612967. The next prime is 33684612979. The reversal of 33684612972 is 27921648633.

It is a super-2 number, since 2×33684612972² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33684612979) 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, 3952588 + ... + 3961100.

It is an arithmetic number, because the mean of its divisors is an integer number (1649374650).

Almost surely, 2^33684612972 is an apocalyptic number.

It is an amenable number.

33684612972 is an abundant number, since it is smaller than the sum of its proper divisors (45485370228).

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

33684612972 is a wasteful number, since it uses less digits than its factorization.

33684612972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10882 (or 10880 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 51.

The spelling of 33684612972 in words is "thirty-three billion, six hundred eighty-four million, six hundred twelve thousand, nine hundred seventy-two".