20826085896 has 192 divisors, whose sum is σ = 74023372800. Its totient is φ = 5124643200.

The previous prime is 20826085879. The next prime is 20826086027. The reversal of 20826085896 is 69858062802.

20826085896 is a `hidden beast` number, since 20 + 8 + 2 + 608 + 5 + 8 + 9 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6481 + ... + 204191.

It is an arithmetic number, because the mean of its divisors is an integer number (385538400).

Almost surely, 2^20826085896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20826085896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37011686400).

20826085896 is an abundant number, since it is smaller than the sum of its proper divisors (53197286904).

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

20826085896 is a wasteful number, since it uses less digits than its factorization.

20826085896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197760 (or 197753 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 54.

The spelling of 20826085896 in words is "twenty billion, eight hundred twenty-six million, eighty-five thousand, eight hundred ninety-six".