28318327584 has 48 divisors (see below), whose sum is σ = 75170864160. Its totient is φ = 9333378560.

The previous prime is 28318327553. The next prime is 28318327589. The reversal of 28318327584 is 48572381382.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (28318327589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1648662 + ... + 1665749.

It is an arithmetic number, because the mean of its divisors is an integer number (1566059670).

Almost surely, 2^28318327584 is an apocalyptic number.

28318327584 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28318327584 is an abundant number, since it is smaller than the sum of its proper divisors (46852536576).

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

28318327584 is a wasteful number, since it uses less digits than its factorization.

28318327584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3314513 (or 3314505 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 51.

The spelling of 28318327584 in words is "twenty-eight billion, three hundred eighteen million, three hundred twenty-seven thousand, five hundred eighty-four".