138750000389 has 48 divisors (see below), whose sum is σ = 189997799040. Its totient is φ = 99601568640.

The previous prime is 138750000281. The next prime is 138750000397. The reversal of 138750000389 is 983000057831.

It is a happy number.

It is not a de Polignac number, because 138750000389 - 2³⁶ = 70030523653 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138750000589) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3547112 + ... + 3586014.

It is an arithmetic number, because the mean of its divisors is an integer number (3958287480).

Almost surely, 2^138750000389 is an apocalyptic number.

It is an amenable number.

138750000389 is a deficient number, since it is larger than the sum of its proper divisors (51247798651).

138750000389 is a wasteful number, since it uses less digits than its factorization.

138750000389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39450 (or 39443 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 138750000389 in words is "one hundred thirty-eight billion, seven hundred fifty million, three hundred eighty-nine", and thus it is an aban number.