20826712944 has 120 divisors (see below), whose sum is σ = 60650171712. Its totient is φ = 6666216960.

The previous prime is 20826712931. The next prime is 20826712987. The reversal of 20826712944 is 44921762802.

It is a self number, because there is not a number n which added to its sum of digits gives 20826712944.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 329674 + ... + 387734.

Almost surely, 2^20826712944 is an apocalyptic number.

20826712944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20826712944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30325085856).

20826712944 is an abundant number, since it is smaller than the sum of its proper divisors (39823458768).

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

20826712944 is a wasteful number, since it uses less digits than its factorization.

20826712944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58175 (or 58166 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 20826712944 in words is "twenty billion, eight hundred twenty-six million, seven hundred twelve thousand, nine hundred forty-four".