138825631382 has 16 divisors (see below), whose sum is σ = 219745018800. Its totient is φ = 65595513600.

The previous prime is 138825631361. The next prime is 138825631397. The reversal of 138825631382 is 283136528831.

It is a super-2 number, since 2×138825631382² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 138825631382.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4540007 + ... + 4570482.

It is an arithmetic number, because the mean of its divisors is an integer number (13734063675).

Almost surely, 2^138825631382 is an apocalyptic number.

138825631382 is a deficient number, since it is larger than the sum of its proper divisors (80919387418).

138825631382 is a wasteful number, since it uses less digits than its factorization.

138825631382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9110911.

The product of its digits is 1658880, while the sum is 50.

The spelling of 138825631382 in words is "one hundred thirty-eight billion, eight hundred twenty-five million, six hundred thirty-one thousand, three hundred eighty-two".