27859366809057 has 32 divisors (see below), whose sum is σ = 42703574502400. Its totient is φ = 15825612841920.

The previous prime is 27859366809019. The next prime is 27859366809073. The reversal of 27859366809057 is 75090866395872.

It is not a de Polignac number, because 27859366809057 - 2⁷ = 27859366808929 is a prime.

It is a super-2 number, since 2×27859366809057² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27859366809057.

It is not an unprimeable number, because it can be changed into a prime (27859366809097) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94194 + ... + 7465092.

It is an arithmetic number, because the mean of its divisors is an integer number (1334486703200).

Almost surely, 2^{27859366809057} is an apocalyptic number.

It is an amenable number.

27859366809057 is a deficient number, since it is larger than the sum of its proper divisors (14844207693343).

27859366809057 is a wasteful number, since it uses less digits than its factorization.

27859366809057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7371973.

The product of its (nonzero) digits is 1371686400, while the sum is 75.

The spelling of 27859366809057 in words is "twenty-seven trillion, eight hundred fifty-nine billion, three hundred sixty-six million, eight hundred nine thousand, fifty-seven".