28461920256000 has 3072 divisors, whose sum is σ = 131875763834880. Its totient is φ = 5733089280000.

The previous prime is 28461920255999. The next prime is 28461920256017. The reversal of 28461920256000 is 65202916482.

28461920256000 is a `hidden beast` number, since 2 + 8 + 4 + 6 + 19 + 2 + 0 + 25 + 600 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (3072).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 105025535865 + ... + 105025536135.

It is an arithmetic number, because the mean of its divisors is an integer number (42928308540).

Almost surely, 2^{28461920256000} is an apocalyptic number.

28461920256000 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 28461920256000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65937881917440).

28461920256000 is an abundant number, since it is smaller than the sum of its proper divisors (103413843578880).

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

28461920256000 is a wasteful number, since it uses less digits than its factorization.

28461920256000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377 (or 336 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 28461920256000 in words is "twenty-eight trillion, four hundred sixty-one billion, nine hundred twenty million, two hundred fifty-six thousand".