27342171641 has 4 divisors (see below), whose sum is σ = 27343073892. Its totient is φ = 27341269392.

The previous prime is 27342171617. The next prime is 27342171707. The reversal of 27342171641 is 14617124372.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12316560400 + 15025611241 = 110980^2 + 122579^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27342171641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27342171595 and 27342171604.

It is not an unprimeable number, because it can be changed into a prime (27342171601) 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, 404030 + ... + 466823.

It is an arithmetic number, because the mean of its divisors is an integer number (6835768473).

Almost surely, 2^27342171641 is an apocalyptic number.

It is an amenable number.

27342171641 is a deficient number, since it is larger than the sum of its proper divisors (902251).

27342171641 is an equidigital number, since it uses as much as digits as its factorization.

27342171641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902250.

The product of its digits is 56448, while the sum is 38.

The spelling of 27342171641 in words is "twenty-seven billion, three hundred forty-two million, one hundred seventy-one thousand, six hundred forty-one".