20893888080 has 480 divisors, whose sum is σ = 84234608640. Its totient is φ = 4585144320.

The previous prime is 20893888073. The next prime is 20893888087. The reversal of 20893888080 is 8088839802.

It is an interprime number because it is at equal distance from previous prime (20893888073) and next prime (20893888087).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20893888087) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3019825 + ... + 3026735.

It is an arithmetic number, because the mean of its divisors is an integer number (175488768).

Almost surely, 2^20893888080 is an apocalyptic number.

20893888080 is a gapful number since it is divisible by the number (20) 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 20893888080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42117304320).

20893888080 is an abundant number, since it is smaller than the sum of its proper divisors (63340720560).

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

20893888080 is a wasteful number, since it uses less digits than its factorization.

20893888080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6979 (or 6970 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 54.

The spelling of 20893888080 in words is "twenty billion, eight hundred ninety-three million, eight hundred eighty-eight thousand, eighty".