129419363521 has 8 divisors (see below), whose sum is σ = 147916091520. Its totient is φ = 110924697408.

The previous prime is 129419363503. The next prime is 129419363543. The reversal of 129419363521 is 125363914921.

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

It is not a de Polignac number, because 129419363521 - 2¹⁹ = 129418839233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129419363501) 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 in 7 ways as a sum of consecutive naturals, for example, 378541 + ... + 634138.

It is an arithmetic number, because the mean of its divisors is an integer number (18489511440).

Almost surely, 2^129419363521 is an apocalyptic number.

It is an amenable number.

129419363521 is a deficient number, since it is larger than the sum of its proper divisors (18496727999).

129419363521 is a wasteful number, since it uses less digits than its factorization.

129419363521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030943.

The product of its digits is 349920, while the sum is 46.

The spelling of 129419363521 in words is "one hundred twenty-nine billion, four hundred nineteen million, three hundred sixty-three thousand, five hundred twenty-one".