127776275251 has 2 divisors, whose sum is σ = 127776275252. Its totient is φ = 127776275250.

The previous prime is 127776275239. The next prime is 127776275273. The reversal of 127776275251 is 152572677721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 127776275251 - 2⁵ = 127776275219 is a prime.

It is a super-2 number, since 2×127776275251² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (127776272251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63888137625 + 63888137626.

It is an arithmetic number, because the mean of its divisors is an integer number (63888137626).

Almost surely, 2^127776275251 is an apocalyptic number.

127776275251 is a deficient number, since it is larger than the sum of its proper divisors (1).

127776275251 is an equidigital number, since it uses as much as digits as its factorization.

127776275251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2881200, while the sum is 52.

The spelling of 127776275251 in words is "one hundred twenty-seven billion, seven hundred seventy-six million, two hundred seventy-five thousand, two hundred fifty-one".