2195861412 has 12 divisors (see below), whose sum is σ = 5123676656. Its totient is φ = 731953800.

The previous prime is 2195861399. The next prime is 2195861443. The reversal of 2195861412 is 2141685912.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91494214 + ... + 91494237.

Almost surely, 2^2195861412 is an apocalyptic number.

It is an amenable number.

2195861412 is an abundant number, since it is smaller than the sum of its proper divisors (2927815244).

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

2195861412 is a wasteful number, since it uses less digits than its factorization.

2195861412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182988458 (or 182988456 counting only the distinct ones).

The product of its digits is 34560, while the sum is 39.

The square root of 2195861412 is about 46860.0193341830. The cubic root of 2195861412 is about 1299.7753876240.

The spelling of 2195861412 in words is "two billion, one hundred ninety-five million, eight hundred sixty-one thousand, four hundred twelve".