127754376779 has 2 divisors, whose sum is σ = 127754376780. Its totient is φ = 127754376778.

The previous prime is 127754376751. The next prime is 127754376793. The reversal of 127754376779 is 977673457721.

It is a strong prime.

It is an emirp because it is prime and its reverse (977673457721) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127754376779 is a prime.

It is not a weakly prime, because it can be changed into another prime (127754376679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63877188389 + 63877188390.

It is an arithmetic number, because the mean of its divisors is an integer number (63877188390).

Almost surely, 2^127754376779 is an apocalyptic number.

127754376779 is a deficient number, since it is larger than the sum of its proper divisors (1).

127754376779 is an equidigital number, since it uses as much as digits as its factorization.

127754376779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108909360, while the sum is 65.

The spelling of 127754376779 in words is "one hundred twenty-seven billion, seven hundred fifty-four million, three hundred seventy-six thousand, seven hundred seventy-nine".