138601883786 has 8 divisors (see below), whose sum is σ = 208003316580. Its totient is φ = 69267444928.

The previous prime is 138601883773. The next prime is 138601883821. The reversal of 138601883786 is 687388106831.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 111172230625 + 27429653161 = 333425^2 + 165619^2 .

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, 16743311 + ... + 16751586.

Almost surely, 2^138601883786 is an apocalyptic number.

138601883786 is a deficient number, since it is larger than the sum of its proper divisors (69401432794).

138601883786 is a wasteful number, since it uses less digits than its factorization.

138601883786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33496968.

The product of its (nonzero) digits is 9289728, while the sum is 59.

The spelling of 138601883786 in words is "one hundred thirty-eight billion, six hundred one million, eight hundred eighty-three thousand, seven hundred eighty-six".