28583988624 has 135 divisors (see below), whose sum is σ = 81528725187. Its totient is φ = 9348784128.

The previous prime is 28583988613. The next prime is 28583988677. The reversal of 28583988624 is 42688938582.

The square root of 28583988624 is 169068.

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

28583988624 is a `hidden beast` number, since 28 + 583 + 9 + 8 + 8 + 6 + 24 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1160628624 + 27423360000 = 34068^2 + 165600^2 .

It is a super-2 number, since 2×28583988624² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 148103472 + ... + 148103664.

Almost surely, 2^28583988624 is an apocalyptic number.

28583988624 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

28583988624 is the 169068-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28583988624

28583988624 is an abundant number, since it is smaller than the sum of its proper divisors (52944736563).

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

28583988624 is an equidigital number, since it uses as much as digits as its factorization.

28583988624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546 (or 271 counting only the distinct ones).

The product of its digits is 53084160, while the sum is 63.

The spelling of 28583988624 in words is "twenty-eight billion, five hundred eighty-three million, nine hundred eighty-eight thousand, six hundred twenty-four".