129444479267 has 8 divisors (see below), whose sum is σ = 129777785856. Its totient is φ = 129111405192.

The previous prime is 129444479249. The next prime is 129444479357. The reversal of 129444479267 is 762974444921.

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 129444479267 - 2¹⁰ = 129444478243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129444475267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1085558 + ... + 1198884.

It is an arithmetic number, because the mean of its divisors is an integer number (16222223232).

Almost surely, 2^129444479267 is an apocalyptic number.

129444479267 is a deficient number, since it is larger than the sum of its proper divisors (333306589).

129444479267 is a wasteful number, since it uses less digits than its factorization.

129444479267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116257.

The product of its digits is 24385536, while the sum is 59.

The spelling of 129444479267 in words is "one hundred twenty-nine billion, four hundred forty-four million, four hundred seventy-nine thousand, two hundred sixty-seven".