8109823992 has 32 divisors (see below), whose sum is σ = 20316220800. Its totient is φ = 2697719904.

The previous prime is 8109823961. The next prime is 8109823999. The reversal of 8109823992 is 2993289018.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8109823999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335242 + ... + 358617.

It is an arithmetic number, because the mean of its divisors is an integer number (634881900).

Almost surely, 2^8109823992 is an apocalyptic number.

It is an amenable number.

8109823992 is an abundant number, since it is smaller than the sum of its proper divisors (12206396808).

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

8109823992 is a wasteful number, since it uses less digits than its factorization.

8109823992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694355 (or 694351 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 51.

The square root of 8109823992 is about 90054.5611948667. The cubic root of 8109823992 is about 2009.1104362947.

The spelling of 8109823992 in words is "eight billion, one hundred nine million, eight hundred twenty-three thousand, nine hundred ninety-two".