3865404195 has 12 divisors (see below), whose sum is σ = 6700034016. Its totient is φ = 2061548880.

The previous prime is 3865404187. The next prime is 3865404209. The reversal of 3865404195 is 5914045683.

3865404195 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3865404195 - 2³ = 3865404187 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 85897871 = 3865404195 / (3 + 8 + 6 + 5 + 4 + 0 + 4 + 1 + 9 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 3865404195.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42948891 + ... + 42948980.

It is an arithmetic number, because the mean of its divisors is an integer number (558336168).

Almost surely, 2^3865404195 is an apocalyptic number.

3865404195 is a deficient number, since it is larger than the sum of its proper divisors (2834629821).

3865404195 is a wasteful number, since it uses less digits than its factorization.

3865404195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85897882 (or 85897879 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The square root of 3865404195 is about 62172.3748541102. The cubic root of 3865404195 is about 1569.3927351095.

The spelling of 3865404195 in words is "three billion, eight hundred sixty-five million, four hundred four thousand, one hundred ninety-five".