127739772866347 has 2 divisors, whose sum is σ = 127739772866348. Its totient is φ = 127739772866346.

The previous prime is 127739772866341. The next prime is 127739772866389. The reversal of 127739772866347 is 743668277937721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 127739772866347 - 2³ = 127739772866339 is a prime.

It is not a weakly prime, because it can be changed into another prime (127739772866341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63869886433173 + 63869886433174.

It is an arithmetic number, because the mean of its divisors is an integer number (63869886433174).

Almost surely, 2^{127739772866347} is an apocalyptic number.

127739772866347 is a deficient number, since it is larger than the sum of its proper divisors (1).

127739772866347 is an equidigital number, since it uses as much as digits as its factorization.

127739772866347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6273179136, while the sum is 79.

The spelling of 127739772866347 in words is "one hundred twenty-seven trillion, seven hundred thirty-nine billion, seven hundred seventy-two million, eight hundred sixty-six thousand, three hundred forty-seven".