7809466728 has 96 divisors (see below), whose sum is σ = 22890470400. Its totient is φ = 2213664768.

The previous prime is 7809466703. The next prime is 7809466729. The reversal of 7809466728 is 8276649087.

It is not an unprimeable number, because it can be changed into a prime (7809466729) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123208 + ... + 175496.

It is an arithmetic number, because the mean of its divisors is an integer number (238442400).

Almost surely, 2^7809466728 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 7809466728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11445235200).

7809466728 is an abundant number, since it is smaller than the sum of its proper divisors (15081003672).

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

7809466728 is a wasteful number, since it uses less digits than its factorization.

7809466728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52439 (or 52428 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 57.

The square root of 7809466728 is about 88371.1872048803. The cubic root of 7809466728 is about 1983.9944806959.

The spelling of 7809466728 in words is "seven billion, eight hundred nine million, four hundred sixty-six thousand, seven hundred twenty-eight".