33713732989 has 8 divisors (see below), whose sum is σ = 33874771320. Its totient is φ = 33552834816.

The previous prime is 33713732951. The next prime is 33713732999. The reversal of 33713732989 is 98923731733.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4429967364 + 29283765625 = 66558^2 + 171125^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 33713732989 - 2⁹ = 33713732477 is a prime.

It is a super-2 number, since 2×33713732989² (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 (33713732999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464067 + ... + 531775.

It is an arithmetic number, because the mean of its divisors is an integer number (4234346415).

Almost surely, 2^33713732989 is an apocalyptic number.

It is an amenable number.

33713732989 is a deficient number, since it is larger than the sum of its proper divisors (161038331).

33713732989 is a wasteful number, since it uses less digits than its factorization.

33713732989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70079.

The product of its digits is 5143824, while the sum is 55.

The spelling of 33713732989 in words is "thirty-three billion, seven hundred thirteen million, seven hundred thirty-two thousand, nine hundred eighty-nine".