3179139406813 has 2 divisors, whose sum is σ = 3179139406814. Its totient is φ = 3179139406812.

The previous prime is 3179139406739. The next prime is 3179139406847. The reversal of 3179139406813 is 3186049319713.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2970790065604 + 208349341209 = 1723598^2 + 456453^2 .

It is a cyclic number.

It is not a de Polignac number, because 3179139406813 - 2³³ = 3170549472221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3179139406873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1589569703406 + 1589569703407.

It is an arithmetic number, because the mean of its divisors is an integer number (1589569703407).

Almost surely, 2^{3179139406813} is an apocalyptic number.

It is an amenable number.

3179139406813 is a deficient number, since it is larger than the sum of its proper divisors (1).

3179139406813 is an equidigital number, since it uses as much as digits as its factorization.

3179139406813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2939328, while the sum is 55.

The spelling of 3179139406813 in words is "three trillion, one hundred seventy-nine billion, one hundred thirty-nine million, four hundred six thousand, eight hundred thirteen".