28357863338 has 16 divisors (see below), whose sum is σ = 48617060544. Its totient is φ = 12152474880.

The previous prime is 28357863307. The next prime is 28357863341. The reversal of 28357863338 is 83336875382.

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 7 ways as a sum of consecutive naturals, for example, 144458 + ... + 278538.

It is an arithmetic number, because the mean of its divisors is an integer number (3038566284).

Almost surely, 2^28357863338 is an apocalyptic number.

28357863338 is a deficient number, since it is larger than the sum of its proper divisors (20259197206).

28357863338 is a wasteful number, since it uses less digits than its factorization.

28357863338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149197.

The product of its digits is 17418240, while the sum is 56.

The spelling of 28357863338 in words is "twenty-eight billion, three hundred fifty-seven million, eight hundred sixty-three thousand, three hundred thirty-eight".