28843476480 has 480 divisors, whose sum is σ = 122954255424. Its totient is φ = 6085214208.

The previous prime is 28843476457. The next prime is 28843476491. The reversal of 28843476480 is 8467434882.

It is a happy number.

28843476480 is a `hidden beast` number, since 2 + 88 + 43 + 47 + 6 + 480 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

It is a super-2 number, since 2×28843476480² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2089762 + ... + 2103518.

Almost surely, 2^28843476480 is an apocalyptic number.

28843476480 is a gapful number since it is divisible by the number (20) 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 28843476480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61477127712).

28843476480 is an abundant number, since it is smaller than the sum of its proper divisors (94110778944).

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

28843476480 is a wasteful number, since it uses less digits than its factorization.

28843476480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13806 (or 13787 counting only the distinct ones).

The product of its (nonzero) digits is 8257536, while the sum is 54.

The spelling of 28843476480 in words is "twenty-eight billion, eight hundred forty-three million, four hundred seventy-six thousand, four hundred eighty".