7928643716 has 48 divisors (see below), whose sum is σ = 16299628800. Its totient is φ = 3303358848.

The previous prime is 7928643713. The next prime is 7928643791. The reversal of 7928643716 is 6173468297.

It is not an unprimeable number, because it can be changed into a prime (7928643713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1612670 + ... + 1617578.

It is an arithmetic number, because the mean of its divisors is an integer number (339575600).

Almost surely, 2^7928643716 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 7928643716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8149814400).

7928643716 is an abundant number, since it is smaller than the sum of its proper divisors (8370985084).

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

7928643716 is a wasteful number, since it uses less digits than its factorization.

7928643716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6516 (or 6514 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 53.

The square root of 7928643716 is about 89042.9318699693. The cubic root of 7928643716 is about 1994.0358752873.

The spelling of 7928643716 in words is "seven billion, nine hundred twenty-eight million, six hundred forty-three thousand, seven hundred sixteen".