33808813272 has 96 divisors (see below), whose sum is σ = 98670433680. Its totient is φ = 10396235520.

The previous prime is 33808813271. The next prime is 33808813279. The reversal of 33808813272 is 27231880833.

It is a super-2 number, since 2×33808813272² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33808813271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1619203 + ... + 1639949.

Almost surely, 2^33808813272 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 33808813272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49335216840).

33808813272 is an abundant number, since it is smaller than the sum of its proper divisors (64861620408).

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

33808813272 is a wasteful number, since it uses less digits than its factorization.

33808813272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22513 (or 22506 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 33808813272 in words is "thirty-three billion, eight hundred eight million, eight hundred thirteen thousand, two hundred seventy-two".