33206728048 has 80 divisors (see below), whose sum is σ = 73411301376. Its totient is φ = 14415114240.

The previous prime is 33206728043. The next prime is 33206728073. The reversal of 33206728048 is 84082760233.

It is a super-2 number, since 2×33206728048² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33206727995 and 33206728013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33206728043) 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, 9266065 + ... + 9269647.

Almost surely, 2^33206728048 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 33206728048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36705650688).

33206728048 is an abundant number, since it is smaller than the sum of its proper divisors (40204573328).

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

33206728048 is a wasteful number, since it uses less digits than its factorization.

33206728048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6242 (or 6236 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 43.

The spelling of 33206728048 in words is "thirty-three billion, two hundred six million, seven hundred twenty-eight thousand, forty-eight".