138445674602 has 8 divisors (see below), whose sum is σ = 207671082276. Its totient is φ = 69221980512.

The previous prime is 138445674583. The next prime is 138445674613. The reversal of 138445674602 is 206476544831.

It can be written as a sum of positive squares in 2 ways, for example, as 138012993001 + 432681601 = 371501^2 + 20801^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202613 + ... + 563864.

Almost surely, 2^138445674602 is an apocalyptic number.

138445674602 is a deficient number, since it is larger than the sum of its proper divisors (69225407674).

138445674602 is an equidigital number, since it uses as much as digits as its factorization.

138445674602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856792.

The product of its (nonzero) digits is 3870720, while the sum is 50.

The spelling of 138445674602 in words is "one hundred thirty-eight billion, four hundred forty-five million, six hundred seventy-four thousand, six hundred two".