3865869318 has 8 divisors (see below), whose sum is σ = 7731738648. Its totient is φ = 1288623104.

The previous prime is 3865869317. The next prime is 3865869347. The reversal of 3865869318 is 8139685683.

3865869318 is digitally balanced in base 2 and base 4, because in such bases 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.

3865869318 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3865869317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322155771 + ... + 322155782.

It is an arithmetic number, because the mean of its divisors is an integer number (966467331).

Almost surely, 2^3865869318 is an apocalyptic number.

3865869318 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3865869318 is a wasteful number, since it uses less digits than its factorization.

3865869318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644311558.

The product of its digits is 7464960, while the sum is 57.

The square root of 3865869318 is about 62176.1153337839. The cubic root of 3865869318 is about 1569.4556807803.

The spelling of 3865869318 in words is "three billion, eight hundred sixty-five million, eight hundred sixty-nine thousand, three hundred eighteen".