3865613479 has 48 divisors (see below), whose sum is σ = 5262458880. Its totient is φ = 2803792320.

The previous prime is 3865613449. The next prime is 3865613483. The reversal of 3865613479 is 9743165683.

It is a happy number.

3865613479 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 3865613479 - 2⁷ = 3865613351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3865613419) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 370042 + ... + 380344.

It is an arithmetic number, because the mean of its divisors is an integer number (109634560).

Almost surely, 2^3865613479 is an apocalyptic number.

3865613479 is a deficient number, since it is larger than the sum of its proper divisors (1396845401).

3865613479 is a wasteful number, since it uses less digits than its factorization.

3865613479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10380 (or 10373 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 52.

The square root of 3865613479 is about 62174.0579261158. The cubic root of 3865613479 is about 1569.4210583969.

The spelling of 3865613479 in words is "three billion, eight hundred sixty-five million, six hundred thirteen thousand, four hundred seventy-nine".