3666819884 has 48 divisors (see below), whose sum is σ = 7903811328. Its totient is φ = 1449499968.

The previous prime is 3666819881. The next prime is 3666819887. The reversal of 3666819884 is 4889186663.

It is an interprime number because it is at equal distance from previous prime (3666819881) and next prime (3666819887).

It is not an unprimeable number, because it can be changed into a prime (3666819881) 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, 603767 + ... + 609809.

It is an arithmetic number, because the mean of its divisors is an integer number (164662736).

Almost surely, 2^3666819884 is an apocalyptic number.

It is an amenable number.

3666819884 is an abundant number, since it is smaller than the sum of its proper divisors (4236991444).

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

3666819884 is a wasteful number, since it uses less digits than its factorization.

3666819884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7734 (or 7732 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 59.

The square root of 3666819884 is about 60554.2722192250. The cubic root of 3666819884 is about 1542.0431480146.

The spelling of 3666819884 in words is "three billion, six hundred sixty-six million, eight hundred nineteen thousand, eight hundred eighty-four".