20846281104 has 240 divisors, whose sum is σ = 67261409280. Its totient is φ = 5965090560.

The previous prime is 20846281097. The next prime is 20846281117. The reversal of 20846281104 is 40118264802.

20846281104 is a `hidden beast` number, since 20 + 8 + 4 + 628 + 1 + 1 + 0 + 4 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2874507 + ... + 2881749.

It is an arithmetic number, because the mean of its divisors is an integer number (280255872).

Almost surely, 2^20846281104 is an apocalyptic number.

20846281104 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 20846281104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33630704640).

20846281104 is an abundant number, since it is smaller than the sum of its proper divisors (46415128176).

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

20846281104 is a wasteful number, since it uses less digits than its factorization.

20846281104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7370 (or 7361 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The spelling of 20846281104 in words is "twenty billion, eight hundred forty-six million, two hundred eighty-one thousand, one hundred four".