129073340725 has 12 divisors (see below), whose sum is σ = 182915363104. Its totient is φ = 88507433520.

The previous prime is 129073340653. The next prime is 129073340729. The reversal of 129073340725 is 527043370921.

It is not a de Polignac number, because 129073340725 - 2¹¹ = 129073338677 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 (129073340729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 368780799 + ... + 368781148.

Almost surely, 2^129073340725 is an apocalyptic number.

It is an amenable number.

129073340725 is a deficient number, since it is larger than the sum of its proper divisors (53842022379).

129073340725 is an equidigital number, since it uses as much as digits as its factorization.

129073340725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737561964 (or 737561959 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 43.

The spelling of 129073340725 in words is "one hundred twenty-nine billion, seventy-three million, three hundred forty thousand, seven hundred twenty-five".