20848887808 has 192 divisors, whose sum is σ = 50369679360. Its totient is φ = 8438169600.

The previous prime is 20848887803. The next prime is 20848887847. The reversal of 20848887808 is 80878884802.

It is a super-2 number, since 2×20848887808² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20848887803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19109343 + ... + 19110433.

It is an arithmetic number, because the mean of its divisors is an integer number (262342080).

Almost surely, 2^20848887808 is an apocalyptic number.

20848887808 is a gapful number since it is divisible by the number (28) 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 20848887808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25184839680).

20848887808 is an abundant number, since it is smaller than the sum of its proper divisors (29520791552).

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

20848887808 is a wasteful number, since it uses less digits than its factorization.

20848887808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194 (or 1174 counting only the distinct ones).

The product of its (nonzero) digits is 14680064, while the sum is 61.

The spelling of 20848887808 in words is "twenty billion, eight hundred forty-eight million, eight hundred eighty-seven thousand, eight hundred eight".