127311284657 has 2 divisors, whose sum is σ = 127311284658. Its totient is φ = 127311284656.

The previous prime is 127311284627. The next prime is 127311284663. The reversal of 127311284657 is 756482113721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127160707216 + 150577441 = 356596^2 + 12271^2 .

It is a cyclic number.

It is not a de Polignac number, because 127311284657 - 2¹⁰ = 127311283633 is a prime.

It is not a weakly prime, because it can be changed into another prime (127311284627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63655642328 + 63655642329.

It is an arithmetic number, because the mean of its divisors is an integer number (63655642329).

Almost surely, 2^127311284657 is an apocalyptic number.

It is an amenable number.

127311284657 is a deficient number, since it is larger than the sum of its proper divisors (1).

127311284657 is an equidigital number, since it uses as much as digits as its factorization.

127311284657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 564480, while the sum is 47.

The spelling of 127311284657 in words is "one hundred twenty-seven billion, three hundred eleven million, two hundred eighty-four thousand, six hundred fifty-seven".