127864136010187 has 2 divisors, whose sum is σ = 127864136010188. Its totient is φ = 127864136010186.

The previous prime is 127864136010179. The next prime is 127864136010229. The reversal of 127864136010187 is 781010631468721.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 127864136010187 - 2³ = 127864136010179 is a prime.

It is not a weakly prime, because it can be changed into another prime (127864136010167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63932068005093 + 63932068005094.

It is an arithmetic number, because the mean of its divisors is an integer number (63932068005094).

Almost surely, 2^{127864136010187} is an apocalyptic number.

127864136010187 is a deficient number, since it is larger than the sum of its proper divisors (1).

127864136010187 is an equidigital number, since it uses as much as digits as its factorization.

127864136010187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2709504, while the sum is 55.

The spelling of 127864136010187 in words is "one hundred twenty-seven trillion, eight hundred sixty-four billion, one hundred thirty-six million, ten thousand, one hundred eighty-seven".