127980000779 has 2 divisors, whose sum is σ = 127980000780. Its totient is φ = 127980000778.

The previous prime is 127980000761. The next prime is 127980000809. The reversal of 127980000779 is 977000089721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 127980000779 - 2¹⁶ = 127979935243 is a prime.

It is not a weakly prime, because it can be changed into another prime (127980000719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63990000389 + 63990000390.

It is an arithmetic number, because the mean of its divisors is an integer number (63990000390).

Almost surely, 2^127980000779 is an apocalyptic number.

127980000779 is a deficient number, since it is larger than the sum of its proper divisors (1).

127980000779 is an equidigital number, since it uses as much as digits as its factorization.

127980000779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 444528, while the sum is 50.

The spelling of 127980000779 in words is "one hundred twenty-seven billion, nine hundred eighty million, seven hundred seventy-nine", and thus it is an aban number.