20838469288 has 96 divisors (see below), whose sum is σ = 48487680000. Its totient is φ = 8220835584.

The previous prime is 20838469271. The next prime is 20838469291. The reversal of 20838469288 is 88296483802.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3621838 + ... + 3627586.

It is an arithmetic number, because the mean of its divisors is an integer number (505080000).

Almost surely, 2^20838469288 is an apocalyptic number.

20838469288 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 20838469288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24243840000).

20838469288 is an abundant number, since it is smaller than the sum of its proper divisors (27649210712).

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

20838469288 is a wasteful number, since it uses less digits than its factorization.

20838469288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6171 (or 6154 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 58.

The spelling of 20838469288 in words is "twenty billion, eight hundred thirty-eight million, four hundred sixty-nine thousand, two hundred eighty-eight".