138151868360 has 96 divisors (see below), whose sum is σ = 348514125120. Its totient is φ = 48879072000.

The previous prime is 138151868357. The next prime is 138151868383. The reversal of 138151868360 is 63868151831.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 138151868299 and 138151868308.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 487685 + ... + 717035.

It is an arithmetic number, because the mean of its divisors is an integer number (3630355470).

Almost surely, 2^138151868360 is an apocalyptic number.

138151868360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 138151868360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174257062560).

138151868360 is an abundant number, since it is smaller than the sum of its proper divisors (210362256760).

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

138151868360 is a wasteful number, since it uses less digits than its factorization.

138151868360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229447 (or 229406 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 50.

The spelling of 138151868360 in words is "one hundred thirty-eight billion, one hundred fifty-one million, eight hundred sixty-eight thousand, three hundred sixty".