127211846636845 has 32 divisors (see below), whose sum is σ = 153977760731520. Its totient is φ = 100891003023360.

The previous prime is 127211846636821. The next prime is 127211846636851. The reversal of 127211846636845 is 548636648112721.

It is a happy number.

It is not a de Polignac number, because 127211846636845 - 2¹¹ = 127211846634797 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4451220766 + ... + 4451249344.

It is an arithmetic number, because the mean of its divisors is an integer number (4811805022860).

Almost surely, 2^{127211846636845} is an apocalyptic number.

It is an amenable number.

127211846636845 is a deficient number, since it is larger than the sum of its proper divisors (26765914094675).

127211846636845 is a wasteful number, since it uses less digits than its factorization.

127211846636845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45325.

The product of its digits is 92897280, while the sum is 64.

The spelling of 127211846636845 in words is "one hundred twenty-seven trillion, two hundred eleven billion, eight hundred forty-six million, six hundred thirty-six thousand, eight hundred forty-five".