129719712459 has 4 divisors (see below), whose sum is σ = 172959616616. Its totient is φ = 86479808304.

The previous prime is 129719712433. The next prime is 129719712461. The reversal of 129719712459 is 954217917921.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 129719712459 - 2⁸ = 129719712203 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 129719712399 and 129719712408.

It is not an unprimeable number, because it can be changed into a prime (129719712259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21619952074 + ... + 21619952079.

It is an arithmetic number, because the mean of its divisors is an integer number (43239904154).

Almost surely, 2^129719712459 is an apocalyptic number.

129719712459 is a deficient number, since it is larger than the sum of its proper divisors (43239904157).

129719712459 is an equidigital number, since it uses as much as digits as its factorization.

129719712459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43239904156.

The product of its digits is 2857680, while the sum is 57.

The spelling of 129719712459 in words is "one hundred twenty-nine billion, seven hundred nineteen million, seven hundred twelve thousand, four hundred fifty-nine".