2195988479 has 4 divisors (see below), whose sum is σ = 2311566840. Its totient is φ = 2080410120.

The previous prime is 2195988469. The next prime is 2195988497. The reversal of 2195988479 is 9748895912.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2195988479 - 2¹² = 2195984383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2195988469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57789152 + ... + 57789189.

It is an arithmetic number, because the mean of its divisors is an integer number (577891710).

Almost surely, 2^2195988479 is an apocalyptic number.

2195988479 is a deficient number, since it is larger than the sum of its proper divisors (115578361).

2195988479 is a wasteful number, since it uses less digits than its factorization.

2195988479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115578360.

The product of its digits is 13063680, while the sum is 62.

The square root of 2195988479 is about 46861.3751292042. The cubic root of 2195988479 is about 1299.8004583278.

The spelling of 2195988479 in words is "two billion, one hundred ninety-five million, nine hundred eighty-eight thousand, four hundred seventy-nine".