28446516516 has 96 divisors (see below), whose sum is σ = 74897012736. Its totient is φ = 8328096000.

The previous prime is 28446516503. The next prime is 28446516547. The reversal of 28446516516 is 61561564482.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 531921 + ... + 582951.

It is an arithmetic number, because the mean of its divisors is an integer number (780177216).

Almost surely, 2^28446516516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28446516516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37448506368).

28446516516 is an abundant number, since it is smaller than the sum of its proper divisors (46450496220).

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

28446516516 is a wasteful number, since it uses less digits than its factorization.

28446516516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51193 (or 51191 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 48.

The spelling of 28446516516 in words is "twenty-eight billion, four hundred forty-six million, five hundred sixteen thousand, five hundred sixteen".