138314413444 has 12 divisors (see below), whose sum is σ = 242053554204. Its totient is φ = 69156255104.

The previous prime is 138314413441. The next prime is 138314413451. The reversal of 138314413444 is 444314413831.

It can be written as a sum of positive squares in 2 ways, for example, as 100418004544 + 37896408900 = 316888^2 + 194670^2 .

It is a super-2 number, since 2×138314413444² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 138314413397 and 138314413406.

It is not an unprimeable number, because it can be changed into a prime (138314413441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164904 + ... + 551200.

It is an arithmetic number, because the mean of its divisors is an integer number (20171129517).

Almost surely, 2^138314413444 is an apocalyptic number.

It is an amenable number.

138314413444 is a deficient number, since it is larger than the sum of its proper divisors (103739140760).

138314413444 is a wasteful number, since it uses less digits than its factorization.

138314413444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475814 (or 475812 counting only the distinct ones).

The product of its digits is 221184, while the sum is 40.

The spelling of 138314413444 in words is "one hundred thirty-eight billion, three hundred fourteen million, four hundred thirteen thousand, four hundred forty-four".