127542223867 has 2 divisors, whose sum is σ = 127542223868. Its totient is φ = 127542223866.

The previous prime is 127542223849. The next prime is 127542223871. The reversal of 127542223867 is 768322245721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 127542223867 - 2¹¹ = 127542221819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 127542223867.

It is not a weakly prime, because it can be changed into another prime (127542224867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63771111933 + 63771111934.

It is an arithmetic number, because the mean of its divisors is an integer number (63771111934).

Almost surely, 2^127542223867 is an apocalyptic number.

127542223867 is a deficient number, since it is larger than the sum of its proper divisors (1).

127542223867 is an equidigital number, since it uses as much as digits as its factorization.

127542223867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2257920, while the sum is 49.

The spelling of 127542223867 in words is "one hundred twenty-seven billion, five hundred forty-two million, two hundred twenty-three thousand, eight hundred sixty-seven".