27393686875 has 20 divisors (see below), whose sum is σ = 34563573616. Its totient is φ = 21702132000.

The previous prime is 27393686869. The next prime is 27393686917. The reversal of 27393686875 is 57868639372.

It is a de Polignac number, because none of the positive numbers 2^k-27393686875 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 148392 + ... + 277141.

Almost surely, 2^27393686875 is an apocalyptic number.

27393686875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

27393686875 is a deficient number, since it is larger than the sum of its proper divisors (7169886741).

27393686875 is an equidigital number, since it uses as much as digits as its factorization.

27393686875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425656 (or 425641 counting only the distinct ones).

The product of its digits is 91445760, while the sum is 64.

The spelling of 27393686875 in words is "twenty-seven billion, three hundred ninety-three million, six hundred eighty-six thousand, eight hundred seventy-five".