138280335696 has 60 divisors (see below), whose sum is σ = 387372328980. Its totient is φ = 46048250880.

The previous prime is 138280335679. The next prime is 138280335751. The reversal of 138280335696 is 696533082831.

It is a happy number.

138280335696 is a `hidden beast` number, since 1 + 3 + 8 + 280 + 3 + 356 + 9 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 101314890000 + 36965445696 = 318300^2 + 192264^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 323241 + ... + 617288.

It is an arithmetic number, because the mean of its divisors is an integer number (6456205483).

Almost surely, 2^138280335696 is an apocalyptic number.

138280335696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

138280335696 is an abundant number, since it is smaller than the sum of its proper divisors (249091993284).

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

138280335696 is a wasteful number, since it uses less digits than its factorization.

138280335696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941564 (or 941555 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The spelling of 138280335696 in words is "one hundred thirty-eight billion, two hundred eighty million, three hundred thirty-five thousand, six hundred ninety-six".