138140433076 has 24 divisors (see below), whose sum is σ = 255979732680. Its totient is φ = 65003799552.

The previous prime is 138140433047. The next prime is 138140433121. The reversal of 138140433076 is 670334041831.

138140433076 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 73049116176 + 65091316900 = 270276^2 + 255130^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1601466 + ... + 1685518.

It is an arithmetic number, because the mean of its divisors is an integer number (10665822195).

Almost surely, 2^138140433076 is an apocalyptic number.

It is an amenable number.

138140433076 is a deficient number, since it is larger than the sum of its proper divisors (117839299604).

138140433076 is a wasteful number, since it uses less digits than its factorization.

138140433076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108243 (or 108241 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The spelling of 138140433076 in words is "one hundred thirty-eight billion, one hundred forty million, four hundred thirty-three thousand, seventy-six".