127366825457 has 2 divisors, whose sum is σ = 127366825458. Its totient is φ = 127366825456.

The previous prime is 127366825429. The next prime is 127366825511. The reversal of 127366825457 is 754528663721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117344613136 + 10022212321 = 342556^2 + 100111^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127366825457 is a prime.

It is not a weakly prime, because it can be changed into another prime (127366825057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63683412728 + 63683412729.

It is an arithmetic number, because the mean of its divisors is an integer number (63683412729).

Almost surely, 2^127366825457 is an apocalyptic number.

It is an amenable number.

127366825457 is a deficient number, since it is larger than the sum of its proper divisors (1).

127366825457 is an equidigital number, since it uses as much as digits as its factorization.

127366825457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16934400, while the sum is 56.

The spelling of 127366825457 in words is "one hundred twenty-seven billion, three hundred sixty-six million, eight hundred twenty-five thousand, four hundred fifty-seven".