1727135277401 has 2 divisors, whose sum is σ = 1727135277402. Its totient is φ = 1727135277400.

The previous prime is 1727135277359. The next prime is 1727135277403. The reversal of 1727135277401 is 1047725317271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1725810317401 + 1324960000 = 1313701^2 + 36400^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1727135277401 is a prime.

Together with 1727135277403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1727135277403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 863567638700 + 863567638701.

It is an arithmetic number, because the mean of its divisors is an integer number (863567638701).

Almost surely, 2^{1727135277401} is an apocalyptic number.

It is an amenable number.

1727135277401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1727135277401 is an equidigital number, since it uses as much as digits as its factorization.

1727135277401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576240, while the sum is 47.

The spelling of 1727135277401 in words is "one trillion, seven hundred twenty-seven billion, one hundred thirty-five million, two hundred seventy-seven thousand, four hundred one".