28158325352 has 16 divisors (see below), whose sum is σ = 52865528100. Its totient is φ = 14060851200.

The previous prime is 28158325339. The next prime is 28158325357. The reversal of 28158325352 is 25352385182.

It can be written as a sum of positive squares in 2 ways, for example, as 27931099876 + 227225476 = 167126^2 + 15074^2 .

It is not an unprimeable number, because it can be changed into a prime (28158325357) 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 3 ways as a sum of consecutive naturals, for example, 2282399 + ... + 2294702.

Almost surely, 2^28158325352 is an apocalyptic number.

It is an amenable number.

28158325352 is a deficient number, since it is larger than the sum of its proper divisors (24707202748).

28158325352 is a wasteful number, since it uses less digits than its factorization.

28158325352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4577876 (or 4577872 counting only the distinct ones).

The product of its digits is 576000, while the sum is 44.

The spelling of 28158325352 in words is "twenty-eight billion, one hundred fifty-eight million, three hundred twenty-five thousand, three hundred fifty-two".