33604772972 has 24 divisors (see below), whose sum is σ = 59073046032. Its totient is φ = 16726809600.

The previous prime is 33604772963. The next prime is 33604772977. The reversal of 33604772972 is 27927740633.

It is a super-2 number, since 2×33604772972² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33604772972.

It is not an unprimeable number, because it can be changed into a prime (33604772977) 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, 4392983 + ... + 4400625.

It is an arithmetic number, because the mean of its divisors is an integer number (2461376918).

Almost surely, 2^33604772972 is an apocalyptic number.

It is an amenable number.

33604772972 is a deficient number, since it is larger than the sum of its proper divisors (25468273060).

33604772972 is a wasteful number, since it uses less digits than its factorization.

33604772972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12449 (or 12447 counting only the distinct ones).

The product of its (nonzero) digits is 2667168, while the sum is 50.

The spelling of 33604772972 in words is "thirty-three billion, six hundred four million, seven hundred seventy-two thousand, nine hundred seventy-two".