127612734173 has 2 divisors, whose sum is σ = 127612734174. Its totient is φ = 127612734172.

The previous prime is 127612734169. The next prime is 127612734209. The reversal of 127612734173 is 371437216721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126680470084 + 932264089 = 355922^2 + 30533^2 .

It is a cyclic number.

It is not a de Polignac number, because 127612734173 - 2² = 127612734169 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127612734133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63806367086 + 63806367087.

It is an arithmetic number, because the mean of its divisors is an integer number (63806367087).

Almost surely, 2^127612734173 is an apocalyptic number.

It is an amenable number.

127612734173 is a deficient number, since it is larger than the sum of its proper divisors (1).

127612734173 is an equidigital number, since it uses as much as digits as its factorization.

127612734173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 296352, while the sum is 44.

The spelling of 127612734173 in words is "one hundred twenty-seven billion, six hundred twelve million, seven hundred thirty-four thousand, one hundred seventy-three".