20900826304 has 56 divisors (see below), whose sum is σ = 43342852608. Its totient is φ = 9990140160.

The previous prime is 20900826269. The next prime is 20900826311. The reversal of 20900826304 is 40362800902.

It is a self number, because there is not a number n which added to its sum of digits gives 20900826304.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48549 + ... + 210139.

Almost surely, 2^20900826304 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 20900826304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21671426304).

20900826304 is an abundant number, since it is smaller than the sum of its proper divisors (22442026304).

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

20900826304 is a wasteful number, since it uses less digits than its factorization.

20900826304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161693 (or 161683 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 20900826304 in words is "twenty billion, nine hundred million, eight hundred twenty-six thousand, three hundred four".