3861735816 has 64 divisors (see below), whose sum is σ = 10136433600. Its totient is φ = 1224292608.

The previous prime is 3861735799. The next prime is 3861735833. The reversal of 3861735816 is 6185371683.

It is an interprime number because it is at equal distance from previous prime (3861735799) and next prime (3861735833).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5226 + ... + 88038.

It is an arithmetic number, because the mean of its divisors is an integer number (158381775).

Almost surely, 2^3861735816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3861735816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5068216800).

3861735816 is an abundant number, since it is smaller than the sum of its proper divisors (6274697784).

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

3861735816 is a wasteful number, since it uses less digits than its factorization.

3861735816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82918 (or 82914 counting only the distinct ones).

The product of its digits is 725760, while the sum is 48.

The square root of 3861735816 is about 62142.8661714279. The cubic root of 3861735816 is about 1568.8961117942.

The spelling of 3861735816 in words is "three billion, eight hundred sixty-one million, seven hundred thirty-five thousand, eight hundred sixteen".