138828140318726 has 32 divisors (see below), whose sum is σ = 212471534094336. Its totient is φ = 68013090900000.

The previous prime is 138828140318717. The next prime is 138828140318737. The reversal of 138828140318726 is 627813041828831.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 705504851 + ... + 705701601.

It is an arithmetic number, because the mean of its divisors is an integer number (6639735440448).

Almost surely, 2^{138828140318726} is an apocalyptic number.

138828140318726 is a deficient number, since it is larger than the sum of its proper divisors (73643393775610).

138828140318726 is a wasteful number, since it uses less digits than its factorization.

138828140318726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219068.

The product of its (nonzero) digits is 24772608, while the sum is 62.

The spelling of 138828140318726 in words is "one hundred thirty-eight trillion, eight hundred twenty-eight billion, one hundred forty million, three hundred eighteen thousand, seven hundred twenty-six".