138611703249 has 8 divisors (see below), whose sum is σ = 205350671520. Its totient is φ = 92407802148.

The previous prime is 138611703227. The next prime is 138611703259. The reversal of 138611703249 is 942307116831.

138611703249 is a `hidden beast` number, since 1 + 3 + 8 + 611 + 7 + 0 + 3 + 24 + 9 = 666.

138611703249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 138611703249 - 2⁷ = 138611703121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138611703259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2566883367 + ... + 2566883420.

It is an arithmetic number, because the mean of its divisors is an integer number (25668833940).

Almost surely, 2^138611703249 is an apocalyptic number.

It is an amenable number.

138611703249 is a deficient number, since it is larger than the sum of its proper divisors (66738968271).

138611703249 is an equidigital number, since it uses as much as digits as its factorization.

138611703249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5133766796 (or 5133766790 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 138611703249 in words is "one hundred thirty-eight billion, six hundred eleven million, seven hundred three thousand, two hundred forty-nine".