28005941911584 has 384 divisors, whose sum is σ = 93198272606208. Its totient is φ = 7166618726400.

The previous prime is 28005941911553. The next prime is 28005941911601. The reversal of 28005941911584 is 48511914950082.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 56475982 + ... + 56969714.

It is an arithmetic number, because the mean of its divisors is an integer number (242703834912).

Almost surely, 2^{28005941911584} is an apocalyptic number.

28005941911584 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 28005941911584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46599136303104).

28005941911584 is an abundant number, since it is smaller than the sum of its proper divisors (65192330694624).

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

28005941911584 is a wasteful number, since it uses less digits than its factorization.

28005941911584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493960 (or 493952 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 57.

The spelling of 28005941911584 in words is "twenty-eight trillion, five billion, nine hundred forty-one million, nine hundred eleven thousand, five hundred eighty-four".