33487221889 has 16 divisors (see below), whose sum is σ = 36649223424. Its totient is φ = 30344979600.

The previous prime is 33487221857. The next prime is 33487221913. The reversal of 33487221889 is 98812278433.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 33487221889 - 2⁵ = 33487221857 is a prime.

It is a super-2 number, since 2×33487221889² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33487222889) 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, 6288382 + ... + 6293704.

It is an arithmetic number, because the mean of its divisors is an integer number (2290576464).

Almost surely, 2^33487221889 is an apocalyptic number.

It is an amenable number.

33487221889 is a deficient number, since it is larger than the sum of its proper divisors (3162001535).

33487221889 is a wasteful number, since it uses less digits than its factorization.

33487221889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7068.

The product of its digits is 4644864, while the sum is 55.

The spelling of 33487221889 in words is "thirty-three billion, four hundred eighty-seven million, two hundred twenty-one thousand, eight hundred eighty-nine".