28450588654332 has 144 divisors (see below), whose sum is σ = 79908354298080. Its totient is φ = 8749949225472.

The previous prime is 28450588654303. The next prime is 28450588654349. The reversal of 28450588654332 is 23345688505482.

28450588654332 is a `hidden beast` number, since 2 + 8 + 4 + 5 + 0 + 5 + 8 + 86 + 543 + 3 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 28450588654332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38934558 + ... + 39658554.

It is an arithmetic number, because the mean of its divisors is an integer number (554919127070).

Almost surely, 2^{28450588654332} 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 28450588654332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39954177149040).

28450588654332 is an abundant number, since it is smaller than the sum of its proper divisors (51457765643748).

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

28450588654332 is a wasteful number, since it uses less digits than its factorization.

28450588654332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726189 (or 726168 counting only the distinct ones).

The product of its (nonzero) digits is 221184000, while the sum is 63.

The spelling of 28450588654332 in words is "twenty-eight trillion, four hundred fifty billion, five hundred eighty-eight million, six hundred fifty-four thousand, three hundred thirty-two".