127776275273 has 2 divisors, whose sum is σ = 127776275274. Its totient is φ = 127776275272.

The previous prime is 127776275251. The next prime is 127776275293. The reversal of 127776275273 is 372572677721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127686158224 + 90117049 = 357332^2 + 9493^2 .

It is a cyclic number.

It is not a de Polignac number, because 127776275273 - 2²⁸ = 127507839817 is a prime.

It is a super-3 number, since 3×127776275273³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (127776275293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63888137636 + 63888137637.

It is an arithmetic number, because the mean of its divisors is an integer number (63888137637).

Almost surely, 2^127776275273 is an apocalyptic number.

It is an amenable number.

127776275273 is a deficient number, since it is larger than the sum of its proper divisors (1).

127776275273 is an equidigital number, since it uses as much as digits as its factorization.

127776275273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12101040, while the sum is 56.

The spelling of 127776275273 in words is "one hundred twenty-seven billion, seven hundred seventy-six million, two hundred seventy-five thousand, two hundred seventy-three".