28587452488 has 64 divisors (see below), whose sum is σ = 62477775360. Its totient is φ = 12008445696.

The previous prime is 28587452479. The next prime is 28587452513. The reversal of 28587452488 is 88425478582.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3310945 + ... + 3319567.

It is an arithmetic number, because the mean of its divisors is an integer number (976215240).

Almost surely, 2^28587452488 is an apocalyptic number.

28587452488 is a gapful number since it is divisible by the number (28) 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 28587452488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31238887680).

28587452488 is an abundant number, since it is smaller than the sum of its proper divisors (33890322872).

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

28587452488 is a wasteful number, since it uses less digits than its factorization.

28587452488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9806 (or 9802 counting only the distinct ones).

The product of its digits is 45875200, while the sum is 61.

The spelling of 28587452488 in words is "twenty-eight billion, five hundred eighty-seven million, four hundred fifty-two thousand, four hundred eighty-eight".