28257559044000 has 1536 divisors, whose sum is σ = 112032029491200. Its totient is φ = 6133929984000.

The previous prime is 28257559043983. The next prime is 28257559044023. The reversal of 28257559044000 is 44095575282.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 38031707629 + ... + 38031708371.

It is an arithmetic number, because the mean of its divisors is an integer number (72937519200).

Almost surely, 2^{28257559044000} is an apocalyptic number.

28257559044000 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 28257559044000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56016014745600).

28257559044000 is an abundant number, since it is smaller than the sum of its proper divisors (83774470447200).

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

28257559044000 is a wasteful number, since it uses less digits than its factorization.

28257559044000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431 (or 1413 counting only the distinct ones).

The product of its (nonzero) digits is 4032000, while the sum is 51.

The spelling of 28257559044000 in words is "twenty-eight trillion, two hundred fifty-seven billion, five hundred fifty-nine million, forty-four thousand".