7996169728 has 40 divisors (see below), whose sum is σ = 16074906408. Its totient is φ = 3973515264.

The previous prime is 7996169723. The next prime is 7996169801. The reversal of 7996169728 is 8279616997.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a self number, because there is not a number n which added to its sum of digits gives 7996169728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7996169723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35550 + ... + 131362.

Almost surely, 2^7996169728 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 7996169728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8037453204).

7996169728 is an abundant number, since it is smaller than the sum of its proper divisors (8078736680).

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

7996169728 is an equidigital number, since it uses as much as digits as its factorization.

7996169728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95994 (or 95978 counting only the distinct ones).

The product of its digits is 20575296, while the sum is 64.

The square root of 7996169728 is about 89421.3046650517. The cubic root of 7996169728 is about 1999.6807597122.

The spelling of 7996169728 in words is "seven billion, nine hundred ninety-six million, one hundred sixty-nine thousand, seven hundred twenty-eight".