138138218803 has 8 divisors (see below), whose sum is σ = 148768096400. Its totient is φ = 127508892768.

The previous prime is 138138218797. The next prime is 138138218839. The reversal of 138138218803 is 308812831831.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138138218803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138138218863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487288 + ... + 716746.

It is an arithmetic number, because the mean of its divisors is an integer number (18596012050).

Almost surely, 2^138138218803 is an apocalyptic number.

138138218803 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

138138218803 is a deficient number, since it is larger than the sum of its proper divisors (10629877597).

138138218803 is a wasteful number, since it uses less digits than its factorization.

138138218803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275781.

The product of its (nonzero) digits is 221184, while the sum is 46.

The spelling of 138138218803 in words is "one hundred thirty-eight billion, one hundred thirty-eight million, two hundred eighteen thousand, eight hundred three".