27856384408311 has 16 divisors (see below), whose sum is σ = 37187196318720. Its totient is φ = 18548250177600.

The previous prime is 27856384408273. The next prime is 27856384408399. The reversal of 27856384408311 is 11380448365872.

It is not a de Polignac number, because 27856384408311 - 2²² = 27856380214007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27856384408511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46456611 + ... + 47052411.

It is an arithmetic number, because the mean of its divisors is an integer number (2324199769920).

Almost surely, 2^{27856384408311} is an apocalyptic number.

27856384408311 is a deficient number, since it is larger than the sum of its proper divisors (9330811910409).

27856384408311 is a wasteful number, since it uses less digits than its factorization.

27856384408311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614806.

The product of its (nonzero) digits is 30965760, while the sum is 60.

The spelling of 27856384408311 in words is "twenty-seven trillion, eight hundred fifty-six billion, three hundred eighty-four million, four hundred eight thousand, three hundred eleven".