3138794265569 has 2 divisors, whose sum is σ = 3138794265570. Its totient is φ = 3138794265568.

The previous prime is 3138794265559. The next prime is 3138794265601. The reversal of 3138794265569 is 9655624978313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2237082593344 + 901711672225 = 1495688^2 + 949585^2 .

It is an emirp because it is prime and its reverse (9655624978313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3138794265569 - 2²⁸ = 3138525830113 is a prime.

It is a super-2 number, since 2×3138794265569² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3138794265499 and 3138794265508.

It is not a weakly prime, because it can be changed into another prime (3138794265559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1569397132784 + 1569397132785.

It is an arithmetic number, because the mean of its divisors is an integer number (1569397132785).

Almost surely, 2^{3138794265569} is an apocalyptic number.

It is an amenable number.

3138794265569 is a deficient number, since it is larger than the sum of its proper divisors (1).

3138794265569 is an equidigital number, since it uses as much as digits as its factorization.

3138794265569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 293932800, while the sum is 68.

The spelling of 3138794265569 in words is "three trillion, one hundred thirty-eight billion, seven hundred ninety-four million, two hundred sixty-five thousand, five hundred sixty-nine".