129875397017 has 16 divisors (see below), whose sum is σ = 133761507840. Its totient is φ = 126049560000.

The previous prime is 129875397013. The next prime is 129875397083. The reversal of 129875397017 is 710793578921.

It is a cyclic number.

It is not a de Polignac number, because 129875397017 - 2² = 129875397013 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129875397013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1878767 + ... + 1946667.

It is an arithmetic number, because the mean of its divisors is an integer number (8360094240).

Almost surely, 2^129875397017 is an apocalyptic number.

It is an amenable number.

129875397017 is a deficient number, since it is larger than the sum of its proper divisors (3886110823).

129875397017 is a wasteful number, since it uses less digits than its factorization.

129875397017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68344.

The product of its (nonzero) digits is 6667920, while the sum is 59.

The spelling of 129875397017 in words is "one hundred twenty-nine billion, eight hundred seventy-five million, three hundred ninety-seven thousand, seventeen".