28355298048 has 1080 divisors, whose sum is σ = 111651946560. Its totient is φ = 7071805440.

The previous prime is 28355297987. The next prime is 28355298077. The reversal of 28355298048 is 84089255382.

It is a happy number.

28355298048 is a `hidden beast` number, since 2 + 8 + 3 + 552 + 9 + 80 + 4 + 8 = 666.

It is a super-2 number, since 2×28355298048² (a number of 22 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 28355297985 and 28355298003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 480598243 + ... + 480598301.

It is an arithmetic number, because the mean of its divisors is an integer number (103381432).

Almost surely, 2^28355298048 is an apocalyptic number.

28355298048 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 28355298048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55825973280).

28355298048 is an abundant number, since it is smaller than the sum of its proper divisors (83296648512).

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

28355298048 is a wasteful number, since it uses less digits than its factorization.

28355298048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 54.

The spelling of 28355298048 in words is "twenty-eight billion, three hundred fifty-five million, two hundred ninety-eight thousand, forty-eight".