27145395127 has 2 divisors, whose sum is σ = 27145395128. Its totient is φ = 27145395126.

The previous prime is 27145395089. The next prime is 27145395143. The reversal of 27145395127 is 72159354172.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27145395127 is a prime.

It is a super-2 number, since 2×27145395127² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27145395187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13572697563 + 13572697564.

It is an arithmetic number, because the mean of its divisors is an integer number (13572697564).

Almost surely, 2^27145395127 is an apocalyptic number.

27145395127 is a deficient number, since it is larger than the sum of its proper divisors (1).

27145395127 is an equidigital number, since it uses as much as digits as its factorization.

27145395127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 529200, while the sum is 46.

The spelling of 27145395127 in words is "twenty-seven billion, one hundred forty-five million, three hundred ninety-five thousand, one hundred twenty-seven".