129412263719 has 2 divisors, whose sum is σ = 129412263720. Its totient is φ = 129412263718.

The previous prime is 129412263697. The next prime is 129412263769. The reversal of 129412263719 is 917362214921.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129412263719 is a prime.

It is a super-2 number, since 2×129412263719² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129412263769) 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, 64706131859 + 64706131860.

It is an arithmetic number, because the mean of its divisors is an integer number (64706131860).

Almost surely, 2^129412263719 is an apocalyptic number.

129412263719 is a deficient number, since it is larger than the sum of its proper divisors (1).

129412263719 is an equidigital number, since it uses as much as digits as its factorization.

129412263719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 47.

The spelling of 129412263719 in words is "one hundred twenty-nine billion, four hundred twelve million, two hundred sixty-three thousand, seven hundred nineteen".