28327757715 has 12 divisors (see below), whose sum is σ = 49101446784. Its totient is φ = 15108137424.

The previous prime is 28327757687. The next prime is 28327757719. The reversal of 28327757715 is 51775772382.

28327757715 is a `hidden beast` number, since 28 + 32 + 7 + 7 + 577 + 15 = 666.

It is not a de Polignac number, because 28327757715 - 2⁸ = 28327757459 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (28327757719) 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 11 ways as a sum of consecutive naturals, for example, 314752819 + ... + 314752908.

It is an arithmetic number, because the mean of its divisors is an integer number (4091787232).

Almost surely, 2^28327757715 is an apocalyptic number.

28327757715 is a deficient number, since it is larger than the sum of its proper divisors (20773689069).

28327757715 is a wasteful number, since it uses less digits than its factorization.

28327757715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629505738 (or 629505735 counting only the distinct ones).

The product of its digits is 5762400, while the sum is 54.

The spelling of 28327757715 in words is "twenty-eight billion, three hundred twenty-seven million, seven hundred fifty-seven thousand, seven hundred fifteen".