8029785816 has 48 divisors (see below), whose sum is σ = 23420211360. Its totient is φ = 2470703040.

The previous prime is 8029785793. The next prime is 8029785821. The reversal of 8029785816 is 6185879208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4288480 + ... + 4290351.

It is an arithmetic number, because the mean of its divisors is an integer number (487921070).

Almost surely, 2^8029785816 is an apocalyptic number.

It is an amenable number.

8029785816 is an abundant number, since it is smaller than the sum of its proper divisors (15390425544).

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

8029785816 is a wasteful number, since it uses less digits than its factorization.

8029785816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8578856 (or 8578849 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 54.

The square root of 8029785816 is about 89609.0721746409. The cubic root of 8029785816 is about 2002.4790771519.

The spelling of 8029785816 in words is "eight billion, twenty-nine million, seven hundred eighty-five thousand, eight hundred sixteen".