127678295089 has 2 divisors, whose sum is σ = 127678295090. Its totient is φ = 127678295088.

The previous prime is 127678295057. The next prime is 127678295113. The reversal of 127678295089 is 980592876721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82819055089 + 44859240000 = 287783^2 + 211800^2 .

It is a cyclic number.

It is not a de Polignac number, because 127678295089 - 2⁵ = 127678295057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 127678295089.

It is not a weakly prime, because it can be changed into another prime (127678295489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63839147544 + 63839147545.

It is an arithmetic number, because the mean of its divisors is an integer number (63839147545).

Almost surely, 2^127678295089 is an apocalyptic number.

It is an amenable number.

127678295089 is a deficient number, since it is larger than the sum of its proper divisors (1).

127678295089 is an equidigital number, since it uses as much as digits as its factorization.

127678295089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30481920, while the sum is 64.

The spelling of 127678295089 in words is "one hundred twenty-seven billion, six hundred seventy-eight million, two hundred ninety-five thousand, eighty-nine".