3129931266929 has 4 divisors (see below), whose sum is σ = 3314044870884. Its totient is φ = 2945817662976.

The previous prime is 3129931266901. The next prime is 3129931266947. The reversal of 3129931266929 is 9296621399213.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1013197256929 + 2116734010000 = 1006577^2 + 1454900^2 .

It is a cyclic number.

It is not a de Polignac number, because 3129931266929 - 2⁴⁰ = 2030419639153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3129931266029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92056801952 + ... + 92056801985.

It is an arithmetic number, because the mean of its divisors is an integer number (828511217721).

Almost surely, 2^{3129931266929} is an apocalyptic number.

It is an amenable number.

3129931266929 is a deficient number, since it is larger than the sum of its proper divisors (184113603955).

3129931266929 is a wasteful number, since it uses less digits than its factorization.

3129931266929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184113603954.

The product of its digits is 17006112, while the sum is 62.

The spelling of 3129931266929 in words is "three trillion, one hundred twenty-nine billion, nine hundred thirty-one million, two hundred sixty-six thousand, nine hundred twenty-nine".