27742671066727 has 4 divisors (see below), whose sum is σ = 27742764117496. Its totient is φ = 27742578015960.

The previous prime is 27742671066697. The next prime is 27742671066739. The reversal of 27742671066727 is 72766017624772.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27742671066727 - 2³⁵ = 27708311328359 is a prime.

It is a super-2 number, since 2×27742671066727² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27742671066827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46076724 + ... + 46674937.

It is an arithmetic number, because the mean of its divisors is an integer number (6935691029374).

Almost surely, 2^{27742671066727} is an apocalyptic number.

27742671066727 is a deficient number, since it is larger than the sum of its proper divisors (93050769).

27742671066727 is an equidigital number, since it uses as much as digits as its factorization.

27742671066727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93050768.

The product of its (nonzero) digits is 116169984, while the sum is 64.

The spelling of 27742671066727 in words is "twenty-seven trillion, seven hundred forty-two billion, six hundred seventy-one million, sixty-six thousand, seven hundred twenty-seven".