3538666889 has 4 divisors (see below), whose sum is σ = 3538804224. Its totient is φ = 3538529556.

The previous prime is 3538666877. The next prime is 3538666891. The reversal of 3538666889 is 9886668353.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9886668353 = 2143 ⋅4613471.

It is a cyclic number.

It is not a de Polignac number, because 3538666889 - 2²⁰ = 3537618313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3538666589) 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 3 ways as a sum of consecutive naturals, for example, 17117 + ... + 85850.

It is an arithmetic number, because the mean of its divisors is an integer number (884701056).

Almost surely, 2^3538666889 is an apocalyptic number.

It is an amenable number.

3538666889 is a deficient number, since it is larger than the sum of its proper divisors (137335).

3538666889 is a wasteful number, since it uses less digits than its factorization.

3538666889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137334.

The product of its digits is 44789760, while the sum is 62.

The square root of 3538666889 is about 59486.6950586432. The cubic root of 3538666889 is about 1523.8652332533.

The spelling of 3538666889 in words is "three billion, five hundred thirty-eight million, six hundred sixty-six thousand, eight hundred eighty-nine".