3129686869313 has 4 divisors (see below), whose sum is σ = 3132991713840. Its totient is φ = 3126382024788.

The previous prime is 3129686869303. The next prime is 3129686869327. The reversal of 3129686869313 is 3139686869213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3129686869313 - 2¹⁰ = 3129686868289 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3129686869313.

It is not an unprimeable number, because it can be changed into a prime (3129686869303) 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, 1652420843 + ... + 1652422736.

It is an arithmetic number, because the mean of its divisors is an integer number (783247928460).

Almost surely, 2^{3129686869313} is an apocalyptic number.

It is an amenable number.

3129686869313 is a deficient number, since it is larger than the sum of its proper divisors (3304844527).

3129686869313 is an equidigital number, since it uses as much as digits as its factorization.

3129686869313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3304844526.

The product of its digits is 60466176, while the sum is 65.

The spelling of 3129686869313 in words is "three trillion, one hundred twenty-nine billion, six hundred eighty-six million, eight hundred sixty-nine thousand, three hundred thirteen".