127621126505227 has 2 divisors, whose sum is σ = 127621126505228. Its totient is φ = 127621126505226.

The previous prime is 127621126505183. The next prime is 127621126505273. The reversal of 127621126505227 is 722505621126721.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127621126505227 is a prime.

It is not a weakly prime, because it can be changed into another prime (127621126505297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63810563252613 + 63810563252614.

It is an arithmetic number, because the mean of its divisors is an integer number (63810563252614).

Almost surely, 2^{127621126505227} is an apocalyptic number.

127621126505227 is a deficient number, since it is larger than the sum of its proper divisors (1).

127621126505227 is an equidigital number, since it uses as much as digits as its factorization.

127621126505227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1411200, while the sum is 49.

The spelling of 127621126505227 in words is "one hundred twenty-seven trillion, six hundred twenty-one billion, one hundred twenty-six million, five hundred five thousand, two hundred twenty-seven".