7983975936 has 80 divisors (see below), whose sum is σ = 21292525584. Its totient is φ = 2658484224.

The previous prime is 7983975929. The next prime is 7983975953. The reversal of 7983975936 is 6395793897.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1830270 + ... + 1834626.

Almost surely, 2^7983975936 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 7983975936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10646262792).

7983975936 is an abundant number, since it is smaller than the sum of its proper divisors (13308549648).

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

7983975936 is a wasteful number, since it uses less digits than its factorization.

7983975936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5571 (or 5555 counting only the distinct ones).

The product of its digits is 77157360, while the sum is 66.

The square root of 7983975936 is about 89353.0969580797. The cubic root of 7983975936 is about 1998.6637687752.

The spelling of 7983975936 in words is "seven billion, nine hundred eighty-three million, nine hundred seventy-five thousand, nine hundred thirty-six".