33284981081 has 4 divisors (see below), whose sum is σ = 36310888464. Its totient is φ = 30259073700.

The previous prime is 33284981057. The next prime is 33284981099. The reversal of 33284981081 is 18018948233.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 33284981081 - 2¹⁸ = 33284718937 is a prime.

It is a super-2 number, since 2×33284981081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33284981021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1512953675 + ... + 1512953696.

It is an arithmetic number, because the mean of its divisors is an integer number (9077722116).

Almost surely, 2^33284981081 is an apocalyptic number.

It is an amenable number.

33284981081 is a deficient number, since it is larger than the sum of its proper divisors (3025907383).

33284981081 is a wasteful number, since it uses less digits than its factorization.

33284981081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3025907382.

The product of its (nonzero) digits is 331776, while the sum is 47.

The spelling of 33284981081 in words is "thirty-three billion, two hundred eighty-four million, nine hundred eighty-one thousand, eighty-one".