3138293071813 has 2 divisors, whose sum is σ = 3138293071814. Its totient is φ = 3138293071812.

The previous prime is 3138293071801. The next prime is 3138293071897. The reversal of 3138293071813 is 3181703928313.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2353468946404 + 784824125409 = 1534102^2 + 885903^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3138293071813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3138293021813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1569146535906 + 1569146535907.

It is an arithmetic number, because the mean of its divisors is an integer number (1569146535907).

Almost surely, 2^{3138293071813} is an apocalyptic number.

It is an amenable number.

3138293071813 is a deficient number, since it is larger than the sum of its proper divisors (1).

3138293071813 is an equidigital number, since it uses as much as digits as its factorization.

3138293071813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 49.

The spelling of 3138293071813 in words is "three trillion, one hundred thirty-eight billion, two hundred ninety-three million, seventy-one thousand, eight hundred thirteen".