28450070281 has 8 divisors (see below), whose sum is σ = 28646064000. Its totient is φ = 28254144240.

The previous prime is 28450070269. The next prime is 28450070351. The reversal of 28450070281 is 18207005482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28450070281 - 2¹⁷ = 28449939209 is a prime.

It is a super-2 number, since 2×28450070281² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28450070281.

It is not an unprimeable number, because it can be changed into a prime (28450070981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1061200 + ... + 1087678.

It is an arithmetic number, because the mean of its divisors is an integer number (3580758000).

Almost surely, 2^28450070281 is an apocalyptic number.

It is an amenable number.

28450070281 is a deficient number, since it is larger than the sum of its proper divisors (195993719).

28450070281 is a wasteful number, since it uses less digits than its factorization.

28450070281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33839.

The product of its (nonzero) digits is 35840, while the sum is 37.

The spelling of 28450070281 in words is "twenty-eight billion, four hundred fifty million, seventy thousand, two hundred eighty-one".