28010350105 has 8 divisors (see below), whose sum is σ = 33615112392. Its totient is φ = 22406485248.

The previous prime is 28010350037. The next prime is 28010350117. The reversal of 28010350105 is 50105301082.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 779079744 + 27231270361 = 27912^2 + 165019^2 .

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 28010350105 - 2⁹ = 28010349593 is a prime.

It is a super-2 number, since 2×28010350105² (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 28010350105.

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 7 ways as a sum of consecutive naturals, for example, 153664 + ... + 282193.

It is an arithmetic number, because the mean of its divisors is an integer number (4201889049).

Almost surely, 2^28010350105 is an apocalyptic number.

It is an amenable number.

28010350105 is a deficient number, since it is larger than the sum of its proper divisors (5604762287).

28010350105 is a wasteful number, since it uses less digits than its factorization.

28010350105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448715.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 28010350105 its reverse (50105301082), we get a palindrome (78115651187).

The spelling of 28010350105 in words is "twenty-eight billion, ten million, three hundred fifty thousand, one hundred five".