129768534767 has 2 divisors, whose sum is σ = 129768534768. Its totient is φ = 129768534766.

The previous prime is 129768534737. The next prime is 129768534793. The reversal of 129768534767 is 767435867921.

It is a strong prime.

It is an emirp because it is prime and its reverse (767435867921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 129768534767 - 2⁶ = 129768534703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129768534737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64884267383 + 64884267384.

It is an arithmetic number, because the mean of its divisors is an integer number (64884267384).

Almost surely, 2^129768534767 is an apocalyptic number.

129768534767 is a deficient number, since it is larger than the sum of its proper divisors (1).

129768534767 is an equidigital number, since it uses as much as digits as its factorization.

129768534767 is an evil number, because the sum of its binary digits is even.

The product of its digits is 106686720, while the sum is 65.

The spelling of 129768534767 in words is "one hundred twenty-nine billion, seven hundred sixty-eight million, five hundred thirty-four thousand, seven hundred sixty-seven".