129787929048751 has 2 divisors, whose sum is σ = 129787929048752. Its totient is φ = 129787929048750.

The previous prime is 129787929048749. The next prime is 129787929048761. The reversal of 129787929048751 is 157840929787921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 129787929048751 - 2¹ = 129787929048749 is a prime.

Together with 129787929048749, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129787929048761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64893964524375 + 64893964524376.

It is an arithmetic number, because the mean of its divisors is an integer number (64893964524376).

Almost surely, 2^{129787929048751} is an apocalyptic number.

129787929048751 is a deficient number, since it is larger than the sum of its proper divisors (1).

129787929048751 is an equidigital number, since it uses as much as digits as its factorization.

129787929048751 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1280240640, while the sum is 79.

The spelling of 129787929048751 in words is "one hundred twenty-nine trillion, seven hundred eighty-seven billion, nine hundred twenty-nine million, forty-eight thousand, seven hundred fifty-one".