2178675880 has 64 divisors (see below), whose sum is σ = 4955904000. Its totient is φ = 861949440.

The previous prime is 2178675871. The next prime is 2178675887. The reversal of 2178675880 is 885768712.

It is a happy number.

2178675880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2178675887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1519644 + ... + 1521076.

It is an arithmetic number, because the mean of its divisors is an integer number (77436000).

Almost surely, 2^2178675880 is an apocalyptic number.

2178675880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2178675880 is an abundant number, since it is smaller than the sum of its proper divisors (2777228120).

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

2178675880 is a wasteful number, since it uses less digits than its factorization.

2178675880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1834 (or 1830 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 52.

The square root of 2178675880 is about 46676.2881986132. The cubic root of 2178675880 is about 1296.3756801578.

The spelling of 2178675880 in words is "two billion, one hundred seventy-eight million, six hundred seventy-five thousand, eight hundred eighty".