2195177872 has 20 divisors (see below), whose sum is σ = 4263320880. Its totient is φ = 1094966048.

The previous prime is 2195177861. The next prime is 2195177879. The reversal of 2195177872 is 2787715912.

It is not an unprimeable number, because it can be changed into a prime (2195177879) by changing a digit.

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, 157018 + ... + 170425.

It is an arithmetic number, because the mean of its divisors is an integer number (213166044).

Almost surely, 2^2195177872 is an apocalyptic number.

It is an amenable number.

2195177872 is a deficient number, since it is larger than the sum of its proper divisors (2068143008).

2195177872 is a wasteful number, since it uses less digits than its factorization.

2195177872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327870 (or 327864 counting only the distinct ones).

The product of its digits is 493920, while the sum is 49.

The square root of 2195177872 is about 46852.7253422893. The cubic root of 2195177872 is about 1299.6405065143.

The spelling of 2195177872 in words is "two billion, one hundred ninety-five million, one hundred seventy-seven thousand, eight hundred seventy-two".