3885819816 has 64 divisors (see below), whose sum is σ = 9773426880. Its totient is φ = 1287452160.

The previous prime is 3885819803. The next prime is 3885819859. The reversal of 3885819816 is 6189185883.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3805386 + ... + 3806406.

It is an arithmetic number, because the mean of its divisors is an integer number (152709795).

Almost surely, 2^3885819816 is an apocalyptic number.

It is an amenable number.

3885819816 is an abundant number, since it is smaller than the sum of its proper divisors (5887607064).

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

3885819816 is a wasteful number, since it uses less digits than its factorization.

3885819816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1834 (or 1830 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 57.

The square root of 3885819816 is about 62336.3442623964. The cubic root of 3885819816 is about 1572.1508670414.

The spelling of 3885819816 in words is "three billion, eight hundred eighty-five million, eight hundred nineteen thousand, eight hundred sixteen".