138310734873 has 16 divisors (see below), whose sum is σ = 186955546496. Its totient is φ = 90936743040.

The previous prime is 138310734869. The next prime is 138310734883. The reversal of 138310734873 is 378437013831.

It is a happy number.

It is not a de Polignac number, because 138310734873 - 2² = 138310734869 is a prime.

It is a super-2 number, since 2×138310734873² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138310734803) 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, 4802988 + ... + 4831698.

It is an arithmetic number, because the mean of its divisors is an integer number (11684721656).

Almost surely, 2^138310734873 is an apocalyptic number.

It is an amenable number.

138310734873 is a deficient number, since it is larger than the sum of its proper divisors (48644811623).

138310734873 is a wasteful number, since it uses less digits than its factorization.

138310734873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50784.

The product of its (nonzero) digits is 1016064, while the sum is 48.

The spelling of 138310734873 in words is "one hundred thirty-eight billion, three hundred ten million, seven hundred thirty-four thousand, eight hundred seventy-three".