127423881757 has 2 divisors, whose sum is σ = 127423881758. Its totient is φ = 127423881756.

The previous prime is 127423881743. The next prime is 127423881773. The reversal of 127423881757 is 757188324721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123345654436 + 4078227321 = 351206^2 + 63861^2 .

It is a cyclic number.

It is not a de Polignac number, because 127423881757 - 2¹⁵ = 127423848989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 127423881698 and 127423881707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127423881857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63711940878 + 63711940879.

It is an arithmetic number, because the mean of its divisors is an integer number (63711940879).

Almost surely, 2^127423881757 is an apocalyptic number.

It is an amenable number.

127423881757 is a deficient number, since it is larger than the sum of its proper divisors (1).

127423881757 is an equidigital number, since it uses as much as digits as its factorization.

127423881757 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5268480, while the sum is 55.

The spelling of 127423881757 in words is "one hundred twenty-seven billion, four hundred twenty-three million, eight hundred eighty-one thousand, seven hundred fifty-seven".