33869889738 has 24 divisors (see below), whose sum is σ = 73434706176. Its totient is φ = 11282279400.

The previous prime is 33869889733. The next prime is 33869889817. The reversal of 33869889738 is 83798896833.

It is a super-2 number, since 2×33869889738² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33869889733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 613108 + ... + 666063.

It is an arithmetic number, because the mean of its divisors is an integer number (3059779424).

Almost surely, 2^33869889738 is an apocalyptic number.

33869889738 is an abundant number, since it is smaller than the sum of its proper divisors (39564816438).

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

33869889738 is a wasteful number, since it uses less digits than its factorization.

33869889738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280650 (or 1280647 counting only the distinct ones).

The product of its digits is 376233984, while the sum is 72.

The spelling of 33869889738 in words is "thirty-three billion, eight hundred sixty-nine million, eight hundred eighty-nine thousand, seven hundred thirty-eight".