138795969513653 has 2 divisors, whose sum is σ = 138795969513654. Its totient is φ = 138795969513652.

The previous prime is 138795969513631. The next prime is 138795969513671. The reversal of 138795969513653 is 356315969597831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71321031451684 + 67474938061969 = 8445178^2 + 8214313^2 .

It is a cyclic number.

It is not a de Polignac number, because 138795969513653 - 2¹⁸ = 138795969251509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138795969513673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69397984756826 + 69397984756827.

It is an arithmetic number, because the mean of its divisors is an integer number (69397984756827).

Almost surely, 2^{138795969513653} is an apocalyptic number.

It is an amenable number.

138795969513653 is a deficient number, since it is larger than the sum of its proper divisors (1).

138795969513653 is an equidigital number, since it uses as much as digits as its factorization.

138795969513653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4960116000, while the sum is 80.

The spelling of 138795969513653 in words is "one hundred thirty-eight trillion, seven hundred ninety-five billion, nine hundred sixty-nine million, five hundred thirteen thousand, six hundred fifty-three".