138456711735 has 16 divisors (see below), whose sum is σ = 234561959136. Its totient is φ = 69499839488.

The previous prime is 138456711719. The next prime is 138456711737. The reversal of 138456711735 is 537117654831.

It is a cyclic number.

It is not a de Polignac number, because 138456711735 - 2⁴ = 138456711719 is a prime.

It is a super-2 number, since 2×138456711735² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138456711737) 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 in 15 ways as a sum of consecutive naturals, for example, 271483494 + ... + 271484003.

It is an arithmetic number, because the mean of its divisors is an integer number (14660122446).

Almost surely, 2^138456711735 is an apocalyptic number.

138456711735 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

138456711735 is a deficient number, since it is larger than the sum of its proper divisors (96105247401).

138456711735 is a wasteful number, since it uses less digits than its factorization.

138456711735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542967522.

The product of its digits is 2116800, while the sum is 51.

The spelling of 138456711735 in words is "one hundred thirty-eight billion, four hundred fifty-six million, seven hundred eleven thousand, seven hundred thirty-five".