3861636117 has 16 divisors (see below), whose sum is σ = 5322424320. Its totient is φ = 2487870000.

The previous prime is 3861636067. The next prime is 3861636131. The reversal of 3861636117 is 7116361683.

3861636117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3861636117 - 2⁸ = 3861635861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3861636617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37992 + ... + 95742.

It is an arithmetic number, because the mean of its divisors is an integer number (332651520).

Almost surely, 2^3861636117 is an apocalyptic number.

It is an amenable number.

3861636117 is a deficient number, since it is larger than the sum of its proper divisors (1460788203).

3861636117 is a wasteful number, since it uses less digits than its factorization.

3861636117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58504.

The product of its digits is 108864, while the sum is 42.

The square root of 3861636117 is about 62142.0639905049. The cubic root of 3861636117 is about 1568.8826102043.

The spelling of 3861636117 in words is "three billion, eight hundred sixty-one million, six hundred thirty-six thousand, one hundred seventeen".