27856930911 has 8 divisors (see below), whose sum is σ = 37151308464. Its totient is φ = 18566920320.

The previous prime is 27856930903. The next prime is 27856930919. The reversal of 27856930911 is 11903965872.

It is an interprime number because it is at equal distance from previous prime (27856930903) and next prime (27856930919).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27856930911 - 2³ = 27856930903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27856930919) 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 7 ways as a sum of consecutive naturals, for example, 1076826 + ... + 1102391.

It is an arithmetic number, because the mean of its divisors is an integer number (4643913558).

Almost surely, 2^27856930911 is an apocalyptic number.

27856930911 is a deficient number, since it is larger than the sum of its proper divisors (9294377553).

27856930911 is a wasteful number, since it uses less digits than its factorization.

27856930911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2183481.

The product of its (nonzero) digits is 816480, while the sum is 51.

The spelling of 27856930911 in words is "twenty-seven billion, eight hundred fifty-six million, nine hundred thirty thousand, nine hundred eleven".