28845219744 has 576 divisors, whose sum is σ = 99858769920. Its totient is φ = 8093675520.

The previous prime is 28845219679. The next prime is 28845219787. The reversal of 28845219744 is 44791254882.

28845219744 is a `hidden beast` number, since 28 + 8 + 4 + 521 + 97 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 120691177 + ... + 120691415.

It is an arithmetic number, because the mean of its divisors is an integer number (173365920).

Almost surely, 2^28845219744 is an apocalyptic number.

28845219744 is a gapful number since it is divisible by the number (24) 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 28845219744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49929384960).

28845219744 is an abundant number, since it is smaller than the sum of its proper divisors (71013550176).

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

28845219744 is a wasteful number, since it uses less digits than its factorization.

28845219744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375 (or 355 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 54.

The spelling of 28845219744 in words is "twenty-eight billion, eight hundred forty-five million, two hundred nineteen thousand, seven hundred forty-four".