27158070671 has 4 divisors (see below), whose sum is σ = 27158938632. Its totient is φ = 27157202712.

The previous prime is 27158070637. The next prime is 27158070721. The reversal of 27158070671 is 17607085172.

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 27158070671 - 2⁶ = 27158070607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27158070371) 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, 385220 + ... + 450233.

It is an arithmetic number, because the mean of its divisors is an integer number (6789734658).

Almost surely, 2^27158070671 is an apocalyptic number.

27158070671 is a deficient number, since it is larger than the sum of its proper divisors (867961).

27158070671 is an equidigital number, since it uses as much as digits as its factorization.

27158070671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867960.

The product of its (nonzero) digits is 164640, while the sum is 44.

The spelling of 27158070671 in words is "twenty-seven billion, one hundred fifty-eight million, seventy thousand, six hundred seventy-one".