127550572275431 has 2 divisors, whose sum is σ = 127550572275432. Its totient is φ = 127550572275430.

The previous prime is 127550572275377. The next prime is 127550572275433. The reversal of 127550572275431 is 134572275055721.

It is a strong prime.

It is an emirp because it is prime and its reverse (134572275055721) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127550572275431 is a prime.

It is a super-2 number, since 2×127550572275431² (a number of 29 digits) contains 22 as substring.

Together with 127550572275433, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127550572275433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63775286137715 + 63775286137716.

It is an arithmetic number, because the mean of its divisors is an integer number (63775286137716).

Almost surely, 2^{127550572275431} is an apocalyptic number.

127550572275431 is a deficient number, since it is larger than the sum of its proper divisors (1).

127550572275431 is an equidigital number, since it uses as much as digits as its factorization.

127550572275431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20580000, while the sum is 56.

The spelling of 127550572275431 in words is "one hundred twenty-seven trillion, five hundred fifty billion, five hundred seventy-two million, two hundred seventy-five thousand, four hundred thirty-one".