28067350752 has 144 divisors (see below), whose sum is σ = 91550021472. Its totient is φ = 7990133760.

The previous prime is 28067350747. The next prime is 28067350781. The reversal of 28067350752 is 25705376082.

28067350752 is a `hidden beast` number, since 2 + 80 + 67 + 3 + 507 + 5 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a junction number, because it is equal to n+sod(n) for n = 28067350698 and 28067350707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 533302 + ... + 583562.

It is an arithmetic number, because the mean of its divisors is an integer number (635764038).

Almost surely, 2^28067350752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28067350752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45775010736).

28067350752 is an abundant number, since it is smaller than the sum of its proper divisors (63482670720).

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

28067350752 is a wasteful number, since it uses less digits than its factorization.

28067350752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50561 (or 50550 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The spelling of 28067350752 in words is "twenty-eight billion, sixty-seven million, three hundred fifty thousand, seven hundred fifty-two".