2197870000 has 50 divisors (see below), whose sum is σ = 5321287268. Its totient is φ = 879144000.

The previous prime is 2197869983. The next prime is 2197870013. The reversal of 2197870000 is 787912.

It is a tau number, because it is divible by the number of its divisors (50).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 99894 + ... + 119893.

Almost surely, 2^2197870000 is an apocalyptic number.

2197870000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2197870000 is an abundant number, since it is smaller than the sum of its proper divisors (3123417268).

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

2197870000 is an equidigital number, since it uses as much as digits as its factorization.

2197870000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219815 (or 219794 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 2197870000 is about 46881.4462234262. The cubic root of 2197870000 is about 1300.1715749875.

The spelling of 2197870000 in words is "two billion, one hundred ninety-seven million, eight hundred seventy thousand".