28616052570 has 384 divisors, whose sum is σ = 90599731200. Its totient is φ = 5631068160.

The previous prime is 28616052529. The next prime is 28616052571. The reversal of 28616052570 is 7525061682.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (28616052571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 65184411 + ... + 65184849.

It is an arithmetic number, because the mean of its divisors is an integer number (235936800).

Almost surely, 2^28616052570 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28616052570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45299865600).

28616052570 is an abundant number, since it is smaller than the sum of its proper divisors (61983678630).

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

28616052570 is a wasteful number, since it uses less digits than its factorization.

28616052570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554 (or 523 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 28616052570 in words is "twenty-eight billion, six hundred sixteen million, fifty-two thousand, five hundred seventy".