2197680680 has 32 divisors (see below), whose sum is σ = 5325150600. Its totient is φ = 811451136.

The previous prime is 2197680677. The next prime is 2197680689. The reversal of 2197680680 is 860867912.

2197680680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1926683236 + 270997444 = 43894^2 + 16462^2 .

It is not an unprimeable number, because it can be changed into a prime (2197680689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2112635 + ... + 2113674.

Almost surely, 2^2197680680 is an apocalyptic number.

2197680680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2197680680 is an abundant number, since it is smaller than the sum of its proper divisors (3127469920).

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

2197680680 is a wasteful number, since it uses less digits than its factorization.

2197680680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4226333 (or 4226329 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 2197680680 is about 46879.4270442803. The cubic root of 2197680680 is about 1300.1342425474.

The spelling of 2197680680 in words is "two billion, one hundred ninety-seven million, six hundred eighty thousand, six hundred eighty".