33502213989 has 12 divisors (see below), whose sum is σ = 48871217772. Its totient is φ = 22113672000.

The previous prime is 33502213967. The next prime is 33502214027. The reversal of 33502213989 is 98931220533.

33502213989 is a `hidden beast` number, since 3 + 3 + 502 + 2 + 139 + 8 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 19555784964 + 13946429025 = 139842^2 + 118095^2 .

It is not a de Polignac number, because 33502213989 - 2⁵ = 33502213957 is a prime.

It is a super-2 number, since 2×33502213989² (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 (33502213189) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18427152 + ... + 18428969.

It is an arithmetic number, because the mean of its divisors is an integer number (4072601481).

Almost surely, 2^33502213989 is an apocalyptic number.

It is an amenable number.

33502213989 is a deficient number, since it is larger than the sum of its proper divisors (15369003783).

33502213989 is a wasteful number, since it uses less digits than its factorization.

33502213989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36856228 (or 36856225 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The spelling of 33502213989 in words is "thirty-three billion, five hundred two million, two hundred thirteen thousand, nine hundred eighty-nine".