33985829549 has 16 divisors (see below), whose sum is σ = 42662830080. Its totient is φ = 26397621360.

The previous prime is 33985829491. The next prime is 33985829561. The reversal of 33985829549 is 94592858933.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33985829549 is a prime.

It is a super-2 number, since 2×33985829549² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33985828549) 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, 5551997 + ... + 5558114.

It is an arithmetic number, because the mean of its divisors is an integer number (2666426880).

Almost surely, 2^33985829549 is an apocalyptic number.

It is an amenable number.

33985829549 is a deficient number, since it is larger than the sum of its proper divisors (8677000531).

33985829549 is a wasteful number, since it uses less digits than its factorization.

33985829549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11110160.

The product of its digits is 83980800, while the sum is 65.

The spelling of 33985829549 in words is "thirty-three billion, nine hundred eighty-five million, eight hundred twenty-nine thousand, five hundred forty-nine".