138258607312 has 80 divisors (see below), whose sum is σ = 312851976192. Its totient is φ = 57956952960.

The previous prime is 138258607283. The next prime is 138258607321. The reversal of 138258607312 is 213706852831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9525853 + ... + 9540355.

Almost surely, 2^138258607312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 138258607312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156425988096).

138258607312 is an abundant number, since it is smaller than the sum of its proper divisors (174593368880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138258607312 is a wasteful number, since it uses less digits than its factorization.

138258607312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16376 (or 16370 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 138258607312 in words is "one hundred thirty-eight billion, two hundred fifty-eight million, six hundred seven thousand, three hundred twelve".