138746890396 has 12 divisors (see below), whose sum is σ = 257089826448. Its totient is φ = 65292654272.

The previous prime is 138746890391. The next prime is 138746890397. The reversal of 138746890396 is 693098647831.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138746890391) 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 3 ways as a sum of consecutive naturals, for example, 1020197656 + ... + 1020197791.

It is an arithmetic number, because the mean of its divisors is an integer number (21424152204).

Almost surely, 2^138746890396 is an apocalyptic number.

It is an amenable number.

138746890396 is a deficient number, since it is larger than the sum of its proper divisors (118342936052).

138746890396 is a wasteful number, since it uses less digits than its factorization.

138746890396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040395468 (or 2040395466 counting only the distinct ones).

The product of its (nonzero) digits is 47029248, while the sum is 64.

The spelling of 138746890396 in words is "one hundred thirty-eight billion, seven hundred forty-six million, eight hundred ninety thousand, three hundred ninety-six".