28788587584 has 63 divisors (see below), whose sum is σ = 57927576423. Its totient is φ = 14195438208.

The previous prime is 28788587539. The next prime is 28788587587. The reversal of 28788587584 is 48578588782.

The square root of 28788587584 is 169672.

It is a perfect power (a square), and thus also a powerful number.

It is not an unprimeable number, because it can be changed into a prime (28788587587) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 172386669 + ... + 172386835.

Almost surely, 2^28788587584 is an apocalyptic number.

28788587584 is the 169672-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28788587584

28788587584 is an abundant number, since it is smaller than the sum of its proper divisors (29138988839).

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

28788587584 is an frugal number, since it uses more digits than its factorization.

28788587584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600 (or 296 counting only the distinct ones).

The product of its digits is 321126400, while the sum is 70.

The spelling of 28788587584 in words is "twenty-eight billion, seven hundred eighty-eight million, five hundred eighty-seven thousand, five hundred eighty-four".