28716520448 has 176 divisors, whose sum is σ = 71904526848. Its totient is φ = 11136000000.

The previous prime is 28716520423. The next prime is 28716520457. The reversal of 28716520448 is 84402561782.

It is a tau number, because it is divible by the number of its divisors (176).

It is a congruent number.

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, 19790123 + ... + 19791573.

It is an arithmetic number, because the mean of its divisors is an integer number (408548448).

Almost surely, 2^28716520448 is an apocalyptic number.

28716520448 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 28716520448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35952263424).

28716520448 is an abundant number, since it is smaller than the sum of its proper divisors (43188006400).

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

28716520448 is a wasteful number, since it uses less digits than its factorization.

28716520448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1740 (or 1722 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 47.

The spelling of 28716520448 in words is "twenty-eight billion, seven hundred sixteen million, five hundred twenty thousand, four hundred forty-eight".