3657882985 has 8 divisors (see below), whose sum is σ = 4393482120. Its totient is φ = 2923624704.

The previous prime is 3657882961. The next prime is 3657883007. The reversal of 3657882985 is 5892887563.

3657882985 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 248724441 + 3409158544 = 15771^2 + 58388^2 .

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 3657882985 - 2⁵ = 3657882953 is a prime.

It is an unprimeable number.

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, 329200 + ... + 340129.

It is an arithmetic number, because the mean of its divisors is an integer number (549185265).

Almost surely, 2^3657882985 is an apocalyptic number.

It is an amenable number.

3657882985 is a deficient number, since it is larger than the sum of its proper divisors (735599135).

3657882985 is a wasteful number, since it uses less digits than its factorization.

3657882985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670427.

The product of its digits is 29030400, while the sum is 61.

The square root of 3657882985 is about 60480.4347289270. The cubic root of 3657882985 is about 1540.7893554098.

The spelling of 3657882985 in words is "three billion, six hundred fifty-seven million, eight hundred eighty-two thousand, nine hundred eighty-five".