28521267360 has 192 divisors, whose sum is σ = 93042794880. Its totient is φ = 7339438080.

The previous prime is 28521267343. The next prime is 28521267451. The reversal of 28521267360 is 6376212582.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1542651 + ... + 1561029.

It is an arithmetic number, because the mean of its divisors is an integer number (484597890).

Almost surely, 2^28521267360 is an apocalyptic number.

28521267360 is a gapful number since it is divisible by the number (20) 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 28521267360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46521397440).

28521267360 is an abundant number, since it is smaller than the sum of its proper divisors (64521527520).

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

28521267360 is a wasteful number, since it uses less digits than its factorization.

28521267360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18511 (or 18503 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 28521267360 in words is "twenty-eight billion, five hundred twenty-one million, two hundred sixty-seven thousand, three hundred sixty".