138670011829 has 2 divisors, whose sum is σ = 138670011830. Its totient is φ = 138670011828.

The previous prime is 138670011817. The next prime is 138670011853. The reversal of 138670011829 is 928110076831.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90421692804 + 48248319025 = 300702^2 + 219655^2 .

It is a cyclic number.

It is not a de Polignac number, because 138670011829 - 2⁹ = 138670011317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138670011629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69335005914 + 69335005915.

It is an arithmetic number, because the mean of its divisors is an integer number (69335005915).

Almost surely, 2^138670011829 is an apocalyptic number.

It is an amenable number.

138670011829 is a deficient number, since it is larger than the sum of its proper divisors (1).

138670011829 is an equidigital number, since it uses as much as digits as its factorization.

138670011829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 46.

The spelling of 138670011829 in words is "one hundred thirty-eight billion, six hundred seventy million, eleven thousand, eight hundred twenty-nine".