28344186308 has 12 divisors (see below), whose sum is σ = 50093438892. Its totient is φ = 14031775200.

The previous prime is 28344186253. The next prime is 28344186331. The reversal of 28344186308 is 80368144382.

It can be written as a sum of positive squares in 2 ways, for example, as 27721584004 + 622602304 = 166498^2 + 24952^2 .

It is a super-2 number, since 2×28344186308² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 35079035 + ... + 35079842.

It is an arithmetic number, because the mean of its divisors is an integer number (4174453241).

Almost surely, 2^28344186308 is an apocalyptic number.

It is an amenable number.

28344186308 is a deficient number, since it is larger than the sum of its proper divisors (21749252584).

28344186308 is a wasteful number, since it uses less digits than its factorization.

28344186308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70158982 (or 70158980 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 47.

The spelling of 28344186308 in words is "twenty-eight billion, three hundred forty-four million, one hundred eighty-six thousand, three hundred eight".