28015291839 has 12 divisors (see below), whose sum is σ = 37542532056. Its totient is φ = 18582928848.

The previous prime is 28015291807. The next prime is 28015291847. The reversal of 28015291839 is 93819251082.

It is not a de Polignac number, because 28015291839 - 2⁵ = 28015291807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28015291859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 897 + ... + 236709.

It is an arithmetic number, because the mean of its divisors is an integer number (3128544338).

Almost surely, 2^28015291839 is an apocalyptic number.

28015291839 is a deficient number, since it is larger than the sum of its proper divisors (9527240217).

28015291839 is an equidigital number, since it uses as much as digits as its factorization.

28015291839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236214 (or 236015 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 48.

The spelling of 28015291839 in words is "twenty-eight billion, fifteen million, two hundred ninety-one thousand, eight hundred thirty-nine".