127211846636851 has 2 divisors, whose sum is σ = 127211846636852. Its totient is φ = 127211846636850.

The previous prime is 127211846636821. The next prime is 127211846636857. The reversal of 127211846636851 is 158636648112721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 127211846636851 - 2²¹ = 127211844539699 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 127211846636851.

It is not a weakly prime, because it can be changed into another prime (127211846636857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63605923318425 + 63605923318426.

It is an arithmetic number, because the mean of its divisors is an integer number (63605923318426).

Almost surely, 2^{127211846636851} is an apocalyptic number.

127211846636851 is a deficient number, since it is larger than the sum of its proper divisors (1).

127211846636851 is an equidigital number, since it uses as much as digits as its factorization.

127211846636851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23224320, while the sum is 61.

The spelling of 127211846636851 in words is "one hundred twenty-seven trillion, two hundred eleven billion, eight hundred forty-six million, six hundred thirty-six thousand, eight hundred fifty-one".