127640103571 has 2 divisors, whose sum is σ = 127640103572. Its totient is φ = 127640103570.

The previous prime is 127640103529. The next prime is 127640103589. The reversal of 127640103571 is 175301046721.

It is a strong prime.

It is an emirp because it is prime and its reverse (175301046721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 127640103571 - 2¹³ = 127640095379 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 127640103571.

It is not a weakly prime, because it can be changed into another prime (127640103271) 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, 63820051785 + 63820051786.

It is an arithmetic number, because the mean of its divisors is an integer number (63820051786).

Almost surely, 2^127640103571 is an apocalyptic number.

127640103571 is a deficient number, since it is larger than the sum of its proper divisors (1).

127640103571 is an equidigital number, since it uses as much as digits as its factorization.

127640103571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 37.

The spelling of 127640103571 in words is "one hundred twenty-seven billion, six hundred forty million, one hundred three thousand, five hundred seventy-one".