127977711349 has 2 divisors, whose sum is σ = 127977711350. Its totient is φ = 127977711348.

The previous prime is 127977711317. The next prime is 127977711413. The reversal of 127977711349 is 943117779721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115061388849 + 12916322500 = 339207^2 + 113650^2 .

It is a cyclic number.

It is not a de Polignac number, because 127977711349 - 2⁵ = 127977711317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 127977711293 and 127977711302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127977717349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63988855674 + 63988855675.

It is an arithmetic number, because the mean of its divisors is an integer number (63988855675).

Almost surely, 2^127977711349 is an apocalyptic number.

It is an amenable number.

127977711349 is a deficient number, since it is larger than the sum of its proper divisors (1).

127977711349 is an equidigital number, since it uses as much as digits as its factorization.

127977711349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4667544, while the sum is 58.

The spelling of 127977711349 in words is "one hundred twenty-seven billion, nine hundred seventy-seven million, seven hundred eleven thousand, three hundred forty-nine".