138079066589 has 2 divisors, whose sum is σ = 138079066590. Its totient is φ = 138079066588.

The previous prime is 138079066519. The next prime is 138079066603. The reversal of 138079066589 is 985660970831.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96819300964 + 41259765625 = 311158^2 + 203125^2 .

It is a cyclic number.

It is not a de Polignac number, because 138079066589 - 2¹² = 138079062493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138079066519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69039533294 + 69039533295.

It is an arithmetic number, because the mean of its divisors is an integer number (69039533295).

Almost surely, 2^138079066589 is an apocalyptic number.

It is an amenable number.

138079066589 is a deficient number, since it is larger than the sum of its proper divisors (1).

138079066589 is an equidigital number, since it uses as much as digits as its factorization.

138079066589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19595520, while the sum is 62.

The spelling of 138079066589 in words is "one hundred thirty-eight billion, seventy-nine million, sixty-six thousand, five hundred eighty-nine".