7808428056 has 256 divisors, whose sum is σ = 24710676480. Its totient is φ = 2021184000.

The previous prime is 7808428039. The next prime is 7808428063. The reversal of 7808428056 is 6508248087.

It is a junction number, because it is equal to n+sod(n) for n = 7808427996 and 7808428014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2445421 + ... + 2448611.

It is an arithmetic number, because the mean of its divisors is an integer number (96526080).

Almost surely, 2^7808428056 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 7808428056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12355338240).

7808428056 is an abundant number, since it is smaller than the sum of its proper divisors (16902248424).

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

7808428056 is a wasteful number, since it uses less digits than its factorization.

7808428056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3278 (or 3274 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 48.

The square root of 7808428056 is about 88365.3102523835. The cubic root of 7808428056 is about 1983.9065186129.

The spelling of 7808428056 in words is "seven billion, eight hundred eight million, four hundred twenty-eight thousand, fifty-six".