127386500779 has 2 divisors, whose sum is σ = 127386500780. Its totient is φ = 127386500778.

The previous prime is 127386500777. The next prime is 127386500849. The reversal of 127386500779 is 977005683721.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (977005683721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 127386500779 - 2¹ = 127386500777 is a prime.

Together with 127386500777, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (127386500777) 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, 63693250389 + 63693250390.

It is an arithmetic number, because the mean of its divisors is an integer number (63693250390).

Almost surely, 2^127386500779 is an apocalyptic number.

127386500779 is a deficient number, since it is larger than the sum of its proper divisors (1).

127386500779 is an equidigital number, since it uses as much as digits as its factorization.

127386500779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4445280, while the sum is 55.

The spelling of 127386500779 in words is "one hundred twenty-seven billion, three hundred eighty-six million, five hundred thousand, seven hundred seventy-nine".