7983815548 has 12 divisors (see below), whose sum is σ = 13972329280. Its totient is φ = 3991721472.

The previous prime is 7983815501. The next prime is 7983815549. The reversal of 7983815548 is 8455183897.

It is a junction number, because it is equal to n+sod(n) for n = 7983815492 and 7983815501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7983815549) 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, 103765 + ... + 163507.

Almost surely, 2^7983815548 is an apocalyptic number.

It is an amenable number.

7983815548 is a deficient number, since it is larger than the sum of its proper divisors (5988513732).

7983815548 is a wasteful number, since it uses less digits than its factorization.

7983815548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93156 (or 93154 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 58.

The square root of 7983815548 is about 89352.1994580995. The cubic root of 7983815548 is about 1998.6503851414.

The spelling of 7983815548 in words is "seven billion, nine hundred eighty-three million, eight hundred fifteen thousand, five hundred forty-eight".