28766321408000 has 384 divisors, whose sum is σ = 79002828515520. Its totient is φ = 10367795200000.

The previous prime is 28766321407969. The next prime is 28766321408057. The reversal of 28766321408000 is 80412366782.

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, 318162800 + ... + 318253200.

Almost surely, 2^{28766321408000} is an apocalyptic number.

28766321408000 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 28766321408000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39501414257760).

28766321408000 is an abundant number, since it is smaller than the sum of its proper divisors (50236507107520).

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

28766321408000 is a wasteful number, since it uses less digits than its factorization.

28766321408000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90562 (or 90532 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 47.

The spelling of 28766321408000 in words is "twenty-eight trillion, seven hundred sixty-six billion, three hundred twenty-one million, four hundred eight thousand".