129325262509 has 8 divisors (see below), whose sum is σ = 130073350400. Its totient is φ = 128578157136.

The previous prime is 129325262503. The next prime is 129325262537. The reversal of 129325262509 is 905262523921.

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 129325262509 - 2¹⁷ = 129325131437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129325262503) 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, 19207 + ... + 508939.

It is an arithmetic number, because the mean of its divisors is an integer number (16259168800).

Almost surely, 2^129325262509 is an apocalyptic number.

It is an amenable number.

129325262509 is a deficient number, since it is larger than the sum of its proper divisors (748087891).

129325262509 is a wasteful number, since it uses less digits than its factorization.

129325262509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491259.

The product of its (nonzero) digits is 583200, while the sum is 46.

The spelling of 129325262509 in words is "one hundred twenty-nine billion, three hundred twenty-five million, two hundred sixty-two thousand, five hundred nine".