13540771427 has 2 divisors, whose sum is σ = 13540771428. Its totient is φ = 13540771426.

The previous prime is 13540771417. The next prime is 13540771429. The reversal of 13540771427 is 72417704531.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13540771427 - 2⁸ = 13540771171 is a prime.

Together with 13540771429, 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 (13540771429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6770385713 + 6770385714.

It is an arithmetic number, because the mean of its divisors is an integer number (6770385714).

Almost surely, 2^13540771427 is an apocalyptic number.

13540771427 is a deficient number, since it is larger than the sum of its proper divisors (1).

13540771427 is an equidigital number, since it uses as much as digits as its factorization.

13540771427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 164640, while the sum is 41.

The spelling of 13540771427 in words is "thirteen billion, five hundred forty million, seven hundred seventy-one thousand, four hundred twenty-seven".