138962394247423 has 16 divisors (see below), whose sum is σ = 146440649296800. Its totient is φ = 131673165886080.

The previous prime is 138962394247333. The next prime is 138962394247441. The reversal of 138962394247423 is 324742493269831.

It is a cyclic number.

It is not a de Polignac number, because 138962394247423 - 2¹³ = 138962394239231 is a prime.

It is a Sastry number since concatenated with its successor gives a square.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138962394244423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87877968 + ... + 89445301.

It is an arithmetic number, because the mean of its divisors is an integer number (9152540581050).

Almost surely, 2^{138962394247423} is an apocalyptic number.

138962394247423 is a deficient number, since it is larger than the sum of its proper divisors (7478255049377).

138962394247423 is a wasteful number, since it uses less digits than its factorization.

138962394247423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177323802.

The product of its digits is 376233984, while the sum is 67.

The spelling of 138962394247423 in words is "one hundred thirty-eight trillion, nine hundred sixty-two billion, three hundred ninety-four million, two hundred forty-seven thousand, four hundred twenty-three".