7986055680 has 400 divisors, whose sum is σ = 30123830880. Its totient is φ = 2016534528.

The previous prime is 7986055639. The next prime is 7986055697. The reversal of 7986055680 is 865506897.

7986055680 is a `hidden beast` number, since 7 + 9 + 8 + 6 + 0 + 556 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3938827 + ... + 3940853.

Almost surely, 2^7986055680 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 7986055680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15061915440).

7986055680 is an abundant number, since it is smaller than the sum of its proper divisors (22137775200).

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

7986055680 is a wasteful number, since it uses less digits than its factorization.

7986055680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2081 (or 2056 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The square root of 7986055680 is about 89364.7339838261. The cubic root of 7986055680 is about 1998.8372975258.

The spelling of 7986055680 in words is "seven billion, nine hundred eighty-six million, fifty-five thousand, six hundred eighty".