2195719788 has 24 divisors (see below), whose sum is σ = 5125498560. Its totient is φ = 731599120.

The previous prime is 2195719787. The next prime is 2195719859. The reversal of 2195719788 is 8879175912.

It is not an unprimeable number, because it can be changed into a prime (2195719787) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7698 + ... + 66713.

It is an arithmetic number, because the mean of its divisors is an integer number (213562440).

Almost surely, 2^2195719788 is an apocalyptic number.

It is an amenable number.

2195719788 is an abundant number, since it is smaller than the sum of its proper divisors (2929778772).

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

2195719788 is a wasteful number, since it uses less digits than its factorization.

2195719788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76877 (or 76875 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 57.

The square root of 2195719788 is about 46858.5081708754. The cubic root of 2195719788 is about 1299.7474436402.

The spelling of 2195719788 in words is "two billion, one hundred ninety-five million, seven hundred nineteen thousand, seven hundred eighty-eight".