138465682247 has 2 divisors, whose sum is σ = 138465682248. Its totient is φ = 138465682246.

The previous prime is 138465682001. The next prime is 138465682513. The reversal of 138465682247 is 742286564831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 138465682247 - 2¹² = 138465678151 is a prime.

It is a lonely number, since its distance to closest prime (138465682001) sets a new record.

It is a junction number, because it is equal to n+sod(n) for n = 138465682192 and 138465682201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138465687247) 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, 69232841123 + 69232841124.

It is an arithmetic number, because the mean of its divisors is an integer number (69232841124).

Almost surely, 2^138465682247 is an apocalyptic number.

138465682247 is a deficient number, since it is larger than the sum of its proper divisors (1).

138465682247 is an equidigital number, since it uses as much as digits as its factorization.

138465682247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15482880, while the sum is 56.

The spelling of 138465682247 in words is "one hundred thirty-eight billion, four hundred sixty-five million, six hundred eighty-two thousand, two hundred forty-seven".