138764683859 has 2 divisors, whose sum is σ = 138764683860. Its totient is φ = 138764683858.

The previous prime is 138764683843. The next prime is 138764683873. The reversal of 138764683859 is 958386467831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 138764683859 - 2⁴ = 138764683843 is a prime.

It is not a weakly prime, because it can be changed into another prime (138764683159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69382341929 + 69382341930.

It is an arithmetic number, because the mean of its divisors is an integer number (69382341930).

Almost surely, 2^138764683859 is an apocalyptic number.

138764683859 is a deficient number, since it is larger than the sum of its proper divisors (1).

138764683859 is an equidigital number, since it uses as much as digits as its factorization.

138764683859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209018880, while the sum is 68.

The spelling of 138764683859 in words is "one hundred thirty-eight billion, seven hundred sixty-four million, six hundred eighty-three thousand, eight hundred fifty-nine".