27143514641 has 2 divisors, whose sum is σ = 27143514642. Its totient is φ = 27143514640.

The previous prime is 27143514637. The next prime is 27143514667. The reversal of 27143514641 is 14641534172.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25761534016 + 1381980625 = 160504^2 + 37175^2 .

It is a cyclic number.

It is not a de Polignac number, because 27143514641 - 2² = 27143514637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27143514595 and 27143514604.

It is not a weakly prime, because it can be changed into another prime (27143514631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13571757320 + 13571757321.

It is an arithmetic number, because the mean of its divisors is an integer number (13571757321).

Almost surely, 2^27143514641 is an apocalyptic number.

It is an amenable number.

27143514641 is a deficient number, since it is larger than the sum of its proper divisors (1).

27143514641 is an equidigital number, since it uses as much as digits as its factorization.

27143514641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 38.

The spelling of 27143514641 in words is "twenty-seven billion, one hundred forty-three million, five hundred fourteen thousand, six hundred forty-one".