28539343015 has 32 divisors (see below), whose sum is σ = 37364184000. Its totient is φ = 20851872768.

The previous prime is 28539342959. The next prime is 28539343031. The reversal of 28539343015 is 51034393582.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28539343015 is a prime.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 345891 + ... + 420379.

It is an arithmetic number, because the mean of its divisors is an integer number (1167630750).

Almost surely, 2^28539343015 is an apocalyptic number.

28539343015 is a deficient number, since it is larger than the sum of its proper divisors (8824840985).

28539343015 is a wasteful number, since it uses less digits than its factorization.

28539343015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74659.

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 28539343015 in words is "twenty-eight billion, five hundred thirty-nine million, three hundred forty-three thousand, fifteen".