7894416680 has 32 divisors (see below), whose sum is σ = 17766824040. Its totient is φ = 3156986880.

The previous prime is 7894416659. The next prime is 7894416697. The reversal of 7894416680 is 866144987.

It can be written as a sum of positive squares in 4 ways, for example, as 6004080196 + 1890336484 = 77486^2 + 43478^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156140 + ... + 200420.

Almost surely, 2^7894416680 is an apocalyptic number.

It is an amenable number.

7894416680 is an abundant number, since it is smaller than the sum of its proper divisors (9872407360).

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

7894416680 is a wasteful number, since it uses less digits than its factorization.

7894416680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48749 (or 48745 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 53.

The square root of 7894416680 is about 88850.5299927918. The cubic root of 7894416680 is about 1991.1623958973.

The spelling of 7894416680 in words is "seven billion, eight hundred ninety-four million, four hundred sixteen thousand, six hundred eighty".