20317682910 has 96 divisors (see below), whose sum is σ = 56860755840. Its totient is φ = 4632817728.

The previous prime is 20317682899. The next prime is 20317682911. The reversal of 20317682910 is 1928671302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20317682911) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 599437 + ... + 632423.

It is an arithmetic number, because the mean of its divisors is an integer number (592299540).

Almost surely, 2^20317682910 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20317682910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28430377920).

20317682910 is an abundant number, since it is smaller than the sum of its proper divisors (36543072930).

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

20317682910 is a wasteful number, since it uses less digits than its factorization.

20317682910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33430 (or 33423 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The spelling of 20317682910 in words is "twenty billion, three hundred seventeen million, six hundred eighty-two thousand, nine hundred ten".