20028847104 has 352 divisors, whose sum is σ = 69646472960. Its totient is φ = 5565874176.

The previous prime is 20028847057. The next prime is 20028847183. The reversal of 20028847104 is 40174882002.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7159434 + ... + 7162230.

Almost surely, 2^20028847104 is an apocalyptic number.

20028847104 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 20028847104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34823236480).

20028847104 is an abundant number, since it is smaller than the sum of its proper divisors (49617625856).

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

20028847104 is a wasteful number, since it uses less digits than its factorization.

20028847104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2870 (or 2846 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 36.

The spelling of 20028847104 in words is "twenty billion, twenty-eight million, eight hundred forty-seven thousand, one hundred four".