28860614784 has 192 divisors, whose sum is σ = 85349103840. Its totient is φ = 9355788288.

The previous prime is 28860614773. The next prime is 28860614789. The reversal of 28860614784 is 48741606882.

28860614784 is a `hidden beast` number, since 28 + 8 + 606 + 1 + 4 + 7 + 8 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a self number, because there is not a number n which added to its sum of digits gives 28860614784.

It is not an unprimeable number, because it can be changed into a prime (28860614789) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12729619 + ... + 12731885.

Almost surely, 2^28860614784 is an apocalyptic number.

28860614784 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28860614784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42674551920).

28860614784 is an abundant number, since it is smaller than the sum of its proper divisors (56488489056).

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

28860614784 is a wasteful number, since it uses less digits than its factorization.

28860614784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2587 (or 2572 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 54.

The spelling of 28860614784 in words is "twenty-eight billion, eight hundred sixty million, six hundred fourteen thousand, seven hundred eighty-four".