138259884908 has 6 divisors (see below), whose sum is σ = 241954798596. Its totient is φ = 69129942452.

The previous prime is 138259884901. The next prime is 138259884947. The reversal of 138259884908 is 809488952831.

It is not an unprimeable number, because it can be changed into a prime (138259884901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17282485610 + ... + 17282485617.

It is an arithmetic number, because the mean of its divisors is an integer number (40325799766).

Almost surely, 2^138259884908 is an apocalyptic number.

It is an amenable number.

138259884908 is a deficient number, since it is larger than the sum of its proper divisors (103694913688).

138259884908 is a wasteful number, since it uses less digits than its factorization.

138259884908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34564971231 (or 34564971229 counting only the distinct ones).

The product of its (nonzero) digits is 39813120, while the sum is 65.

The spelling of 138259884908 in words is "one hundred thirty-eight billion, two hundred fifty-nine million, eight hundred eighty-four thousand, nine hundred eight".