28223041734720 has 1344 divisors, whose sum is σ = 119809281945600. Its totient is φ = 5959546306560.

The previous prime is 28223041734697. The next prime is 28223041734733. The reversal of 28223041734720 is 2743714032282.

28223041734720 is a `hidden beast` number, since 2 + 8 + 2 + 2 + 3 + 0 + 4 + 173 + 472 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1344).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1613013012 + ... + 1613030508.

Almost surely, 2^{28223041734720} is an apocalyptic number.

28223041734720 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 28223041734720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59904640972800).

28223041734720 is an abundant number, since it is smaller than the sum of its proper divisors (91586240210880).

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

28223041734720 is a wasteful number, since it uses less digits than its factorization.

28223041734720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17676 (or 17663 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 45.

The spelling of 28223041734720 in words is "twenty-eight trillion, two hundred twenty-three billion, forty-one million, seven hundred thirty-four thousand, seven hundred twenty".