129819686513 has 8 divisors (see below), whose sum is σ = 146189911296. Its totient is φ = 114210867600.

The previous prime is 129819686467. The next prime is 129819686537. The reversal of 129819686513 is 315686918921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129819686513 - 2⁶ = 129819686449 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (129819686543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190351106 + ... + 190351787.

It is an arithmetic number, because the mean of its divisors is an integer number (18273738912).

Almost surely, 2^129819686513 is an apocalyptic number.

It is an amenable number.

129819686513 is a deficient number, since it is larger than the sum of its proper divisors (16370224783).

129819686513 is a wasteful number, since it uses less digits than its factorization.

129819686513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380702935.

The product of its digits is 5598720, while the sum is 59.

The spelling of 129819686513 in words is "one hundred twenty-nine billion, eight hundred nineteen million, six hundred eighty-six thousand, five hundred thirteen".