3821685899 has 8 divisors (see below), whose sum is σ = 3869182080. Its totient is φ = 3774291136.

The previous prime is 3821685841. The next prime is 3821685913. The reversal of 3821685899 is 9985861283.

3821685899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3821685899 - 2²⁰ = 3820637323 is a prime.

It is a super-2 number, since 2×3821685899² = 29210566221230876402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3821687899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51929 + ... + 101685.

It is an arithmetic number, because the mean of its divisors is an integer number (483647760).

Almost surely, 2^3821685899 is an apocalyptic number.

3821685899 is a deficient number, since it is larger than the sum of its proper divisors (47496181).

3821685899 is an equidigital number, since it uses as much as digits as its factorization.

3821685899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50709.

The product of its digits is 7464960, while the sum is 59.

The square root of 3821685899 is about 61819.7856596090. The cubic root of 3821685899 is about 1563.4535993067.

The spelling of 3821685899 in words is "three billion, eight hundred twenty-one million, six hundred eighty-five thousand, eight hundred ninety-nine".