3785916663 has 12 divisors (see below), whose sum is σ = 5494466328. Its totient is φ = 2511981360.

The previous prime is 3785916619. The next prime is 3785916691. The reversal of 3785916663 is 3666195873.

It is not a de Polignac number, because 3785916663 - 2⁹ = 3785916151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3785996663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 994920 + ... + 998717.

It is an arithmetic number, because the mean of its divisors is an integer number (457872194).

Almost surely, 2^3785916663 is an apocalyptic number.

3785916663 is a deficient number, since it is larger than the sum of its proper divisors (1708549665).

3785916663 is a wasteful number, since it uses less digits than its factorization.

3785916663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993854 (or 1993851 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 54.

The square root of 3785916663 is about 61529.8030469788. The cubic root of 3785916663 is about 1558.5605644780.

The spelling of 3785916663 in words is "three billion, seven hundred eighty-five million, nine hundred sixteen thousand, six hundred sixty-three".