2180878372 has 12 divisors (see below), whose sum is σ = 3830025136. Its totient is φ = 1086585480.

The previous prime is 2180878367. The next prime is 2180878411. The reversal of 2180878372 is 2738780812.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 962154 + ... + 964417.

Almost surely, 2^2180878372 is an apocalyptic number.

It is an amenable number.

2180878372 is a deficient number, since it is larger than the sum of its proper divisors (1649146764).

2180878372 is a wasteful number, since it uses less digits than its factorization.

2180878372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1926858 (or 1926856 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 46.

The square root of 2180878372 is about 46699.8755030460. The cubic root of 2180878372 is about 1296.8123820210.

The spelling of 2180878372 in words is "two billion, one hundred eighty million, eight hundred seventy-eight thousand, three hundred seventy-two".