20704444317 has 16 divisors (see below), whose sum is σ = 30694802880. Its totient is φ = 13793264496.

The previous prime is 20704444309. The next prime is 20704444339. The reversal of 20704444317 is 71344440702.

It is a happy number.

20704444317 is a `hidden beast` number, since 207 + 0 + 4 + 4 + 443 + 1 + 7 = 666.

It is not a de Polignac number, because 20704444317 - 2³ = 20704444309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20704444307) 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 15 ways as a sum of consecutive naturals, for example, 230158 + ... + 307215.

It is an arithmetic number, because the mean of its divisors is an integer number (1918425180).

Almost surely, 2^20704444317 is an apocalyptic number.

20704444317 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

20704444317 is a deficient number, since it is larger than the sum of its proper divisors (9990358563).

20704444317 is a wasteful number, since it uses less digits than its factorization.

20704444317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538809 (or 538803 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 36.

The spelling of 20704444317 in words is "twenty billion, seven hundred four million, four hundred forty-four thousand, three hundred seventeen".