28234884546 has 144 divisors (see below), whose sum is σ = 68825663712. Its totient is φ = 8296041600.

The previous prime is 28234884541. The next prime is 28234884569. The reversal of 28234884546 is 64548843282.

28234884546 is a `hidden beast` number, since 2 + 82 + 3 + 488 + 45 + 46 = 666.

It is a super-2 number, since 2×28234884546² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28234884492 and 28234884501.

It is not an unprimeable number, because it can be changed into a prime (28234884541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 85301601 + ... + 85301931.

It is an arithmetic number, because the mean of its divisors is an integer number (477955998).

Almost surely, 2^28234884546 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28234884546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34412831856).

28234884546 is an abundant number, since it is smaller than the sum of its proper divisors (40590779166).

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

28234884546 is a wasteful number, since it uses less digits than its factorization.

28234884546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669 (or 623 counting only the distinct ones).

The product of its digits is 11796480, while the sum is 54.

The spelling of 28234884546 in words is "twenty-eight billion, two hundred thirty-four million, eight hundred eighty-four thousand, five hundred forty-six".