138847727948 has 12 divisors (see below), whose sum is σ = 243034700832. Its totient is φ = 69409242000.

The previous prime is 138847727933. The next prime is 138847727957. The reversal of 138847727948 is 849727748831.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3634115 + ... + 3672122.

It is an arithmetic number, because the mean of its divisors is an integer number (20252891736).

Almost surely, 2^138847727948 is an apocalyptic number.

It is an amenable number.

138847727948 is a deficient number, since it is larger than the sum of its proper divisors (104186972884).

138847727948 is a wasteful number, since it uses less digits than its factorization.

138847727948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7310992 (or 7310990 counting only the distinct ones).

The product of its digits is 151732224, while the sum is 68.

The spelling of 138847727948 in words is "one hundred thirty-eight billion, eight hundred forty-seven million, seven hundred twenty-seven thousand, nine hundred forty-eight".