7944428716 has 24 divisors (see below), whose sum is σ = 16067388960. Its totient is φ = 3366498432.

The previous prime is 7944428711. The next prime is 7944428741. The reversal of 7944428716 is 6178244497.

It is a super-2 number, since 2×7944428716² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7944428711) 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 7 ways as a sum of consecutive naturals, for example, 1591495 + ... + 1596478.

It is an arithmetic number, because the mean of its divisors is an integer number (669474540).

Almost surely, 2^7944428716 is an apocalyptic number.

It is an amenable number.

7944428716 is an abundant number, since it is smaller than the sum of its proper divisors (8122960244).

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

7944428716 is a wasteful number, since it uses less digits than its factorization.

7944428716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3188073 (or 3188071 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 52.

The square root of 7944428716 is about 89131.5248158585. The cubic root of 7944428716 is about 1995.3582952893.

The spelling of 7944428716 in words is "seven billion, nine hundred forty-four million, four hundred twenty-eight thousand, seven hundred sixteen".