2185084680 has 64 divisors (see below), whose sum is σ = 6569640000. Its totient is φ = 581410560.

The previous prime is 2185084679. The next prime is 2185084687. The reversal of 2185084680 is 864805812.

It is not an unprimeable number, because it can be changed into a prime (2185084687) 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, 35571 + ... + 75069.

It is an arithmetic number, because the mean of its divisors is an integer number (102650625).

Almost surely, 2^2185084680 is an apocalyptic number.

2185084680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2185084680 is an abundant number, since it is smaller than the sum of its proper divisors (4384555320).

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

2185084680 is a wasteful number, since it uses less digits than its factorization.

2185084680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39974 (or 39970 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 42.

The square root of 2185084680 is about 46744.8893463232. The cubic root of 2185084680 is about 1297.6455767548.

The spelling of 2185084680 in words is "two billion, one hundred eighty-five million, eighty-four thousand, six hundred eighty".