20448479196 has 18 divisors (see below), whose sum is σ = 51689211392. Its totient is φ = 6816159720.

The previous prime is 20448479173. The next prime is 20448479197. The reversal of 20448479196 is 69197484402.

20448479196 is a `hidden beast` number, since 2 + 0 + 4 + 484 + 79 + 1 + 96 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20448479197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 284006620 + ... + 284006691.

Almost surely, 2^20448479196 is an apocalyptic number.

It is an amenable number.

20448479196 is an abundant number, since it is smaller than the sum of its proper divisors (31240732196).

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

20448479196 is a wasteful number, since it uses less digits than its factorization.

20448479196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568013321 (or 568013316 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 20448479196 in words is "twenty billion, four hundred forty-eight million, four hundred seventy-nine thousand, one hundred ninety-six".