136771559779 has 2 divisors, whose sum is σ = 136771559780. Its totient is φ = 136771559778.

The previous prime is 136771559777. The next prime is 136771559783. The reversal of 136771559779 is 977955177631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136771559779 - 2¹ = 136771559777 is a prime.

Together with 136771559777, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (136771559777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68385779889 + 68385779890.

It is an arithmetic number, because the mean of its divisors is an integer number (68385779890).

Almost surely, 2^136771559779 is an apocalyptic number.

136771559779 is a deficient number, since it is larger than the sum of its proper divisors (1).

136771559779 is an equidigital number, since it uses as much as digits as its factorization.

136771559779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 87516450, while the sum is 67.

The spelling of 136771559779 in words is "one hundred thirty-six billion, seven hundred seventy-one million, five hundred fifty-nine thousand, seven hundred seventy-nine".