28252343876 has 12 divisors (see below), whose sum is σ = 50374462572. Its totient is φ = 13859640288.

The previous prime is 28252343851. The next prime is 28252343881. The reversal of 28252343876 is 67834325282.

It can be written as a sum of positive squares in 2 ways, for example, as 6901289476 + 21351054400 = 83074^2 + 146120^2 .

It is a super-3 number, since 3×28252343876³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 66632675 + ... + 66633098.

It is an arithmetic number, because the mean of its divisors is an integer number (4197871881).

Almost surely, 2^28252343876 is an apocalyptic number.

It is an amenable number.

28252343876 is a deficient number, since it is larger than the sum of its proper divisors (22122118696).

28252343876 is a wasteful number, since it uses less digits than its factorization.

28252343876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133265830 (or 133265828 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 50.

The spelling of 28252343876 in words is "twenty-eight billion, two hundred fifty-two million, three hundred forty-three thousand, eight hundred seventy-six".