7678444680 has 64 divisors (see below), whose sum is σ = 25594819200. Its totient is φ = 2047584960.

The previous prime is 7678444667. The next prime is 7678444733. The reversal of 7678444680 is 864448767.

7678444680 is a `hidden beast` number, since 76 + 78 + 44 + 468 + 0 = 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 15 ways as a sum of consecutive naturals, for example, 3553756 + ... + 3555915.

It is an arithmetic number, because the mean of its divisors is an integer number (399919050).

Almost surely, 2^7678444680 is an apocalyptic number.

It is an amenable number.

7678444680 is an abundant number, since it is smaller than the sum of its proper divisors (17916374520).

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

7678444680 is a wasteful number, since it uses less digits than its factorization.

7678444680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7109691 (or 7109681 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 54.

The square root of 7678444680 is about 87626.7349614260. The cubic root of 7678444680 is about 1972.8364647447.

The spelling of 7678444680 in words is "seven billion, six hundred seventy-eight million, four hundred forty-four thousand, six hundred eighty".