28248407616 has 448 divisors, whose sum is σ = 91384989696. Its totient is φ = 7586611200.

The previous prime is 28248407587. The next prime is 28248407617. The reversal of 28248407616 is 61670484282.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (28248407617) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 83823000 + ... + 83823336.

It is an arithmetic number, because the mean of its divisors is an integer number (203984352).

Almost surely, 2^28248407616 is an apocalyptic number.

28248407616 is a gapful number since it is divisible by the number (26) 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 28248407616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45692494848).

28248407616 is an abundant number, since it is smaller than the sum of its proper divisors (63136582080).

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

28248407616 is a wasteful number, since it uses less digits than its factorization.

28248407616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490 (or 480 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 48.

The spelling of 28248407616 in words is "twenty-eight billion, two hundred forty-eight million, four hundred seven thousand, six hundred sixteen".