2195895872 has 14 divisors (see below), whose sum is σ = 4357480998. Its totient is φ = 1097947904.

The previous prime is 2195895851. The next prime is 2195895887. The reversal of 2195895872 is 2785985912.

It can be written as a sum of positive squares in only one way, i.e., 2009190976 + 186704896 = 44824^2 + 13664^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17155373 + ... + 17155500.

Almost surely, 2^2195895872 is an apocalyptic number.

It is an amenable number.

2195895872 is a deficient number, since it is larger than the sum of its proper divisors (2161585126).

2195895872 is an equidigital number, since it uses as much as digits as its factorization.

2195895872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34310885 (or 34310875 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 56.

The square root of 2195895872 is about 46860.3870235831. The cubic root of 2195895872 is about 1299.7821867819.

The spelling of 2195895872 in words is "two billion, one hundred ninety-five million, eight hundred ninety-five thousand, eight hundred seventy-two".