3538671685 has 8 divisors (see below), whose sum is σ = 4264027416. Its totient is φ = 2819189760.

The previous prime is 3538671683. The next prime is 3538671743. The reversal of 3538671685 is 5861768353.

3538671685 is digitally balanced in base 3, 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 4 ways, for example, as 442639521 + 3096032164 = 21039^2 + 55642^2 .

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

It is not a de Polignac number, because 3538671685 - 2¹ = 3538671683 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 (3538671683) 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 7 ways as a sum of consecutive naturals, for example, 1467124 + ... + 1469533.

It is an arithmetic number, because the mean of its divisors is an integer number (533003427).

Almost surely, 2^3538671685 is an apocalyptic number.

It is an amenable number.

3538671685 is a deficient number, since it is larger than the sum of its proper divisors (725355731).

3538671685 is a wasteful number, since it uses less digits than its factorization.

3538671685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2936903.

The product of its digits is 3628800, while the sum is 52.

The square root of 3538671685 is about 59486.7353701647. The cubic root of 3538671685 is about 1523.8659216909.

The spelling of 3538671685 in words is "three billion, five hundred thirty-eight million, six hundred seventy-one thousand, six hundred eighty-five".