127919329507 has 2 divisors, whose sum is σ = 127919329508. Its totient is φ = 127919329506.

The previous prime is 127919329459. The next prime is 127919329519. The reversal of 127919329507 is 705923919721.

It is a strong prime.

It is an emirp because it is prime and its reverse (705923919721) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127919329507 is a prime.

It is not a weakly prime, because it can be changed into another prime (127919329007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63959664753 + 63959664754.

It is an arithmetic number, because the mean of its divisors is an integer number (63959664754).

Almost surely, 2^127919329507 is an apocalyptic number.

127919329507 is a deficient number, since it is larger than the sum of its proper divisors (1).

127919329507 is an equidigital number, since it uses as much as digits as its factorization.

127919329507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2143260, while the sum is 55.

The spelling of 127919329507 in words is "one hundred twenty-seven billion, nine hundred nineteen million, three hundred twenty-nine thousand, five hundred seven".