3863671885 has 8 divisors (see below), whose sum is σ = 4796282520. Its totient is φ = 2984353344.

The previous prime is 3863671873. The next prime is 3863671891. The reversal of 3863671885 is 5881763683.

It can be written as a sum of positive squares in 4 ways, for example, as 138156516 + 3725515369 = 11754^2 + 61037^2 .

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

It is not a de Polignac number, because 3863671885 - 2⁵ = 3863671853 is a prime.

It is a congruent number.

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, 13322862 + ... + 13323151.

It is an arithmetic number, because the mean of its divisors is an integer number (599535315).

Almost surely, 2^3863671885 is an apocalyptic number.

It is an amenable number.

3863671885 is a deficient number, since it is larger than the sum of its proper divisors (932610635).

3863671885 is a wasteful number, since it uses less digits than its factorization.

3863671885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26646047.

The product of its digits is 5806080, while the sum is 55.

The square root of 3863671885 is about 62158.4417838800. The cubic root of 3863671885 is about 1569.1582550203.

The spelling of 3863671885 in words is "three billion, eight hundred sixty-three million, six hundred seventy-one thousand, eight hundred eighty-five".