3866145700 has 72 divisors (see below), whose sum is σ = 8544718728. Its totient is φ = 1518059520.

The previous prime is 3866145697. The next prime is 3866145709. The reversal of 3866145700 is 75416683.

It is a happy number.

3866145700 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 688117824 + 3178027876 = 26232^2 + 56374^2 .

It is not an unprimeable number, because it can be changed into a prime (3866145709) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1699764 + ... + 1702036.

It is an arithmetic number, because the mean of its divisors is an integer number (118676649).

Almost surely, 2^3866145700 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 3866145700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4272359364).

3866145700 is an abundant number, since it is smaller than the sum of its proper divisors (4678573028).

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

3866145700 is a wasteful number, since it uses less digits than its factorization.

3866145700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2593 (or 2586 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 3866145700 is about 62178.3378677816. The cubic root of 3866145700 is about 1569.4930815069.

The spelling of 3866145700 in words is "three billion, eight hundred sixty-six million, one hundred forty-five thousand, seven hundred".