33229749072 has 80 divisors (see below), whose sum is σ = 92589573888. Its totient is φ = 10208755200.

The previous prime is 33229749067. The next prime is 33229749083. The reversal of 33229749072 is 27094792233.

It is a super-2 number, since 2×33229749072² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 366697 + ... + 448247.

Almost surely, 2^33229749072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33229749072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46294786944).

33229749072 is an abundant number, since it is smaller than the sum of its proper divisors (59359824816).

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

33229749072 is a wasteful number, since it uses less digits than its factorization.

33229749072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82228 (or 82222 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 48.

The spelling of 33229749072 in words is "thirty-three billion, two hundred twenty-nine million, seven hundred forty-nine thousand, seventy-two".