127640120257159 has 2 divisors, whose sum is σ = 127640120257160. Its totient is φ = 127640120257158.

The previous prime is 127640120257121. The next prime is 127640120257213. The reversal of 127640120257159 is 951752021046721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 127640120257159 - 2¹⁷ = 127640120126087 is a prime.

It is a super-2 number, since 2×127640120257159² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127640120287159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63820060128579 + 63820060128580.

It is an arithmetic number, because the mean of its divisors is an integer number (63820060128580).

Almost surely, 2^{127640120257159} is an apocalyptic number.

127640120257159 is a deficient number, since it is larger than the sum of its proper divisors (1).

127640120257159 is an equidigital number, since it uses as much as digits as its factorization.

127640120257159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2116800, while the sum is 52.

The spelling of 127640120257159 in words is "one hundred twenty-seven trillion, six hundred forty billion, one hundred twenty million, two hundred fifty-seven thousand, one hundred fifty-nine".