127207245868643 has 2 divisors, whose sum is σ = 127207245868644. Its totient is φ = 127207245868642.

The previous prime is 127207245868601. The next prime is 127207245868709. The reversal of 127207245868643 is 346868542702721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 127207245868643 - 2²⁰ = 127207244820067 is a prime.

It is a super-2 number, since 2×127207245868643² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 127207245868643.

It is not a weakly prime, because it can be changed into another prime (127207245868243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63603622934321 + 63603622934322.

It is an arithmetic number, because the mean of its divisors is an integer number (63603622934322).

Almost surely, 2^{127207245868643} is an apocalyptic number.

127207245868643 is a deficient number, since it is larger than the sum of its proper divisors (1).

127207245868643 is an equidigital number, since it uses as much as digits as its factorization.

127207245868643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216760320, while the sum is 65.

The spelling of 127207245868643 in words is "one hundred twenty-seven trillion, two hundred seven billion, two hundred forty-five million, eight hundred sixty-eight thousand, six hundred forty-three".