3666869736 has 128 divisors (see below), whose sum is σ = 10054800000. Its totient is φ = 1109928960.

The previous prime is 3666869729. The next prime is 3666869743. The reversal of 3666869736 is 6379686663.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3666869729) and next prime (3666869743).

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 3666869736.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1969446 + ... + 1971306.

It is an arithmetic number, because the mean of its divisors is an integer number (78553125).

Almost surely, 2^3666869736 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 3666869736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5027400000).

3666869736 is an abundant number, since it is smaller than the sum of its proper divisors (6387930264).

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

3666869736 is a wasteful number, since it uses less digits than its factorization.

3666869736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2067 (or 2063 counting only the distinct ones).

The product of its digits is 35271936, while the sum is 60.

The square root of 3666869736 is about 60554.6838485678. The cubic root of 3666869736 is about 1542.0501362305.

The spelling of 3666869736 in words is "three billion, six hundred sixty-six million, eight hundred sixty-nine thousand, seven hundred thirty-six".