138085926519029 has 2 divisors, whose sum is σ = 138085926519030. Its totient is φ = 138085926519028.

The previous prime is 138085926518999. The next prime is 138085926519061. The reversal of 138085926519029 is 920915629580831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80760812836804 + 57325113682225 = 8986702^2 + 7571335^2 .

It is a cyclic number.

It is not a de Polignac number, because 138085926519029 - 2³² = 138081631551733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 138085926519029.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138085926516029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69042963259514 + 69042963259515.

It is an arithmetic number, because the mean of its divisors is an integer number (69042963259515).

Almost surely, 2^{138085926519029} is an apocalyptic number.

It is an amenable number.

138085926519029 is a deficient number, since it is larger than the sum of its proper divisors (1).

138085926519029 is an equidigital number, since it uses as much as digits as its factorization.

138085926519029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 83980800, while the sum is 68.

The spelling of 138085926519029 in words is "one hundred thirty-eight trillion, eighty-five billion, nine hundred twenty-six million, five hundred nineteen thousand, twenty-nine".