8106818784 has 24 divisors (see below), whose sum is σ = 21280399560. Its totient is φ = 2702272896.

The previous prime is 8106818777. The next prime is 8106818789. The reversal of 8106818784 is 4878186018.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8106818789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42222919 + ... + 42223110.

It is an arithmetic number, because the mean of its divisors is an integer number (886683315).

Almost surely, 2^8106818784 is an apocalyptic number.

It is an amenable number.

8106818784 is an abundant number, since it is smaller than the sum of its proper divisors (13173580776).

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

8106818784 is a wasteful number, since it uses less digits than its factorization.

8106818784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84446042 (or 84446034 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 51.

The square root of 8106818784 is about 90037.8741641538. The cubic root of 8106818784 is about 2008.8622377020.

The spelling of 8106818784 in words is "eight billion, one hundred six million, eight hundred eighteen thousand, seven hundred eighty-four".