3649888885 has 8 divisors (see below), whose sum is σ = 4610386080. Its totient is φ = 2766231504.

The previous prime is 3649888867. The next prime is 3649888889. The reversal of 3649888885 is 5888889463.

It is a happy number.

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 3649888885 - 2¹¹ = 3649886837 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3649888885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3649888889) 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, 19209847 + ... + 19210036.

It is an arithmetic number, because the mean of its divisors is an integer number (576298260).

Almost surely, 2^3649888885 is an apocalyptic number.

It is an amenable number.

3649888885 is a deficient number, since it is larger than the sum of its proper divisors (960497195).

3649888885 is a wasteful number, since it uses less digits than its factorization.

3649888885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38419907.

The product of its digits is 106168320, while the sum is 67.

The square root of 3649888885 is about 60414.3102666910. The cubic root of 3649888885 is about 1539.6661002358. Note that the first 3 decimals are identical.

The spelling of 3649888885 in words is "three billion, six hundred forty-nine million, eight hundred eighty-eight thousand, eight hundred eighty-five".