3865688198 has 16 divisors (see below), whose sum is σ = 6015159360. Its totient is φ = 1861828800.

The previous prime is 3865688179. The next prime is 3865688207. The reversal of 3865688198 is 8918865683.

3865688198 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 3865688198.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291893 + ... + 304848.

It is an arithmetic number, because the mean of its divisors is an integer number (375947460).

Almost surely, 2^3865688198 is an apocalyptic number.

3865688198 is a deficient number, since it is larger than the sum of its proper divisors (2149471162).

3865688198 is a wasteful number, since it uses less digits than its factorization.

3865688198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596863.

The product of its digits is 19906560, while the sum is 62.

The square root of 3865688198 is about 62174.6588088749. The cubic root of 3865688198 is about 1569.4311701870.

The spelling of 3865688198 in words is "three billion, eight hundred sixty-five million, six hundred eighty-eight thousand, one hundred ninety-eight".