138966795259 has 2 divisors, whose sum is σ = 138966795260. Its totient is φ = 138966795258.

The previous prime is 138966795241. The next prime is 138966795299. The reversal of 138966795259 is 952597669831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 138966795259 - 2¹³ = 138966787067 is a prime.

It is not a weakly prime, because it can be changed into another prime (138966795299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69483397629 + 69483397630.

It is an arithmetic number, because the mean of its divisors is an integer number (69483397630).

Almost surely, 2^138966795259 is an apocalyptic number.

138966795259 is a deficient number, since it is larger than the sum of its proper divisors (1).

138966795259 is an equidigital number, since it uses as much as digits as its factorization.

138966795259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 220449600, while the sum is 70.

The spelling of 138966795259 in words is "one hundred thirty-eight billion, nine hundred sixty-six million, seven hundred ninety-five thousand, two hundred fifty-nine".