28448850970512 has 280 divisors, whose sum is σ = 94526587391360. Its totient is φ = 8121447244800.

The previous prime is 28448850970457. The next prime is 28448850970517. The reversal of 28448850970512 is 21507905884482.

28448850970512 is a `hidden beast` number, since 2 + 8 + 4 + 4 + 8 + 8 + 509 + 70 + 51 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 28448850970512.

It is not an unprimeable number, because it can be changed into a prime (28448850970517) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 97914189 + ... + 98204307.

Almost surely, 2^{28448850970512} 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 28448850970512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47263293695680).

28448850970512 is an abundant number, since it is smaller than the sum of its proper divisors (66077736420848).

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

28448850970512 is a wasteful number, since it uses less digits than its factorization.

28448850970512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291353 (or 291332 counting only the distinct ones).

The product of its (nonzero) digits is 51609600, while the sum is 63.

The spelling of 28448850970512 in words is "twenty-eight trillion, four hundred forty-eight billion, eight hundred fifty million, nine hundred seventy thousand, five hundred twelve".