138338560799 has 16 divisors (see below), whose sum is σ = 144556539456. Its totient is φ = 132272006400.

The previous prime is 138338560781. The next prime is 138338560837. The reversal of 138338560799 is 997065833831.

It is a cyclic number.

It is not a de Polignac number, because 138338560799 - 2⁸ = 138338560543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138338560729) 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, 592934 + ... + 792620.

It is an arithmetic number, because the mean of its divisors is an integer number (9034783716).

Almost surely, 2^138338560799 is an apocalyptic number.

138338560799 is a deficient number, since it is larger than the sum of its proper divisors (6217978657).

138338560799 is a wasteful number, since it uses less digits than its factorization.

138338560799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200066.

The product of its (nonzero) digits is 29393280, while the sum is 62.

The spelling of 138338560799 in words is "one hundred thirty-eight billion, three hundred thirty-eight million, five hundred sixty thousand, seven hundred ninety-nine".