138683027328 has 32 divisors (see below), whose sum is σ = 368376792360. Its totient is φ = 46227675648.

The previous prime is 138683027309. The next prime is 138683027347. The reversal of 138683027328 is 823720386831.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (138683027309) and next prime (138683027347).

It is a tau number, because it is divible by the number of its divisors (32).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180576475 + ... + 180577242.

Almost surely, 2^138683027328 is an apocalyptic number.

It is an amenable number.

138683027328 is an abundant number, since it is smaller than the sum of its proper divisors (229693765032).

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

138683027328 is an equidigital number, since it uses as much as digits as its factorization.

138683027328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361153734 (or 361153722 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 51.

The spelling of 138683027328 in words is "one hundred thirty-eight billion, six hundred eighty-three million, twenty-seven thousand, three hundred twenty-eight".