979878680 has 128 divisors (see below), whose sum is σ = 2550139200. Its totient is φ = 335462400.

The previous prime is 979878673. The next prime is 979878719. The reversal of 979878680 is 86878979.

979878680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 522224 + ... + 524096.

Almost surely, 2^979878680 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 979878680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1275069600).

979878680 is an abundant number, since it is smaller than the sum of its proper divisors (1570260520).

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

979878680 is a wasteful number, since it uses less digits than its factorization.

979878680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1965 (or 1961 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 62.

The square root of 979878680 is about 31303.0139124015. The cubic root of 979878680 is about 993.2473983383.

The spelling of 979878680 in words is "nine hundred seventy-nine million, eight hundred seventy-eight thousand, six hundred eighty".