127423881773 has 2 divisors, whose sum is σ = 127423881774. Its totient is φ = 127423881772.

The previous prime is 127423881757. The next prime is 127423881841. The reversal of 127423881773 is 377188324721.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108068672644 + 19355209129 = 328738^2 + 139123^2 .

It is a cyclic number.

It is not a de Polignac number, because 127423881773 - 2⁴ = 127423881757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127423881743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63711940886 + 63711940887.

It is an arithmetic number, because the mean of its divisors is an integer number (63711940887).

Almost surely, 2^127423881773 is an apocalyptic number.

It is an amenable number.

127423881773 is a deficient number, since it is larger than the sum of its proper divisors (1).

127423881773 is an equidigital number, since it uses as much as digits as its factorization.

127423881773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3161088, while the sum is 53.

The spelling of 127423881773 in words is "one hundred twenty-seven billion, four hundred twenty-three million, eight hundred eighty-one thousand, seven hundred seventy-three".