7863823616 has 72 divisors (see below), whose sum is σ = 17541836928. Its totient is φ = 3487232000.

The previous prime is 7863823577. The next prime is 7863823619. The reversal of 7863823616 is 6163283687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7863823619) 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, 81401 + ... + 149511.

It is an arithmetic number, because the mean of its divisors is an integer number (243636624).

Almost surely, 2^7863823616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7863823616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8770918464).

7863823616 is an abundant number, since it is smaller than the sum of its proper divisors (9678013312).

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

7863823616 is a wasteful number, since it uses less digits than its factorization.

7863823616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68179 (or 68165 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 50.

The square root of 7863823616 is about 88678.2025979327. The cubic root of 7863823616 is about 1988.5869631813.

The spelling of 7863823616 in words is "seven billion, eight hundred sixty-three million, eight hundred twenty-three thousand, six hundred sixteen".