28344808080 has 120 divisors (see below), whose sum is σ = 99330124608. Its totient is φ = 7229975808.

The previous prime is 28344808061. The next prime is 28344808087. The reversal of 28344808080 is 8080844382.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (28344808087) 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, 839262 + ... + 872381.

Almost surely, 2^28344808080 is an apocalyptic number.

28344808080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28344808080 is an abundant number, since it is smaller than the sum of its proper divisors (70985316528).

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

28344808080 is a wasteful number, since it uses less digits than its factorization.

28344808080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1711685 (or 1711676 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 45.

The spelling of 28344808080 in words is "twenty-eight billion, three hundred forty-four million, eight hundred eight thousand, eighty".