138780755383 has 4 divisors (see below), whose sum is σ = 138791196280. Its totient is φ = 138770314488.

The previous prime is 138780755369. The next prime is 138780755413. The reversal of 138780755383 is 383557087831.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 138780755383 - 2³³ = 130190820791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138780755353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5200485 + ... + 5227102.

It is an arithmetic number, because the mean of its divisors is an integer number (34697799070).

Almost surely, 2^138780755383 is an apocalyptic number.

138780755383 is a deficient number, since it is larger than the sum of its proper divisors (10440897).

138780755383 is a wasteful number, since it uses less digits than its factorization.

138780755383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10440896.

The product of its (nonzero) digits is 16934400, while the sum is 58.

The spelling of 138780755383 in words is "one hundred thirty-eight billion, seven hundred eighty million, seven hundred fifty-five thousand, three hundred eighty-three".