3533671685 has 16 divisors (see below), whose sum is σ = 4287726576. Its totient is φ = 2795440128.

The previous prime is 3533671681. The next prime is 3533671693. The reversal of 3533671685 is 5861763353.

It is a happy number.

3533671685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 522076801 + 3011594884 = 22849^2 + 54878^2 .

It is a cyclic number.

It is not a de Polignac number, because 3533671685 - 2² = 3533671681 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3533671681) 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, 780047 + ... + 784563.

It is an arithmetic number, because the mean of its divisors is an integer number (267982911).

Almost surely, 2^3533671685 is an apocalyptic number.

It is an amenable number.

3533671685 is a deficient number, since it is larger than the sum of its proper divisors (754054891).

3533671685 is a wasteful number, since it uses less digits than its factorization.

3533671685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6232.

The product of its digits is 1360800, while the sum is 47.

The square root of 3533671685 is about 59444.6943385194. The cubic root of 3533671685 is about 1523.1478630795.

The spelling of 3533671685 in words is "three billion, five hundred thirty-three million, six hundred seventy-one thousand, six hundred eighty-five".