129044465549 has 8 divisors (see below), whose sum is σ = 132856180800. Its totient is φ = 125264383200.

The previous prime is 129044465531. The next prime is 129044465593. The reversal of 129044465549 is 945564440921.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129044465549 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 129044465549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129040465549) 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, 7899947 + ... + 7916264.

It is an arithmetic number, because the mean of its divisors is an integer number (16607022600).

Almost surely, 2^129044465549 is an apocalyptic number.

It is an amenable number.

129044465549 is a deficient number, since it is larger than the sum of its proper divisors (3811715251).

129044465549 is a wasteful number, since it uses less digits than its factorization.

129044465549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15816451.

The product of its (nonzero) digits is 6220800, while the sum is 53.

The spelling of 129044465549 in words is "one hundred twenty-nine billion, forty-four million, four hundred sixty-five thousand, five hundred forty-nine".