28125015473568 has 192 divisors, whose sum is σ = 81987255447552. Its totient is φ = 8387494272000.

The previous prime is 28125015473561. The next prime is 28125015473573. The reversal of 28125015473568 is 86537451052182.

It is not an unprimeable number, because it can be changed into a prime (28125015473561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3713943 + ... + 8369193.

It is an arithmetic number, because the mean of its divisors is an integer number (427016955456).

Almost surely, 2^{28125015473568} 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 28125015473568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40993627723776).

28125015473568 is an abundant number, since it is smaller than the sum of its proper divisors (53862239973984).

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

28125015473568 is a wasteful number, since it uses less digits than its factorization.

28125015473568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4655427 (or 4655419 counting only the distinct ones).

The product of its (nonzero) digits is 16128000, while the sum is 57.

The spelling of 28125015473568 in words is "twenty-eight trillion, one hundred twenty-five billion, fifteen million, four hundred seventy-three thousand, five hundred sixty-eight".