3716785820 has 48 divisors (see below), whose sum is σ = 9015699168. Its totient is φ = 1272053760.

The previous prime is 3716785819. The next prime is 3716785829. The reversal of 3716785820 is 285876173.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3716785829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 493157 + ... + 500636.

It is an arithmetic number, because the mean of its divisors is an integer number (187827066).

Almost surely, 2^3716785820 is an apocalyptic number.

It is an amenable number.

3716785820 is an abundant number, since it is smaller than the sum of its proper divisors (5298913348).

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

3716785820 is a wasteful number, since it uses less digits than its factorization.

3716785820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993830 (or 993828 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 47.

The square root of 3716785820 is about 60965.4477552654. The cubic root of 3716785820 is about 1549.0157914192.

The spelling of 3716785820 in words is "three billion, seven hundred sixteen million, seven hundred eighty-five thousand, eight hundred twenty".