138733239750 has 64 divisors (see below), whose sum is σ = 395746490880. Its totient is φ = 31710453600.

The previous prime is 138733239739. The next prime is 138733239767. The reversal of 138733239750 is 57932337831.

It is a junction number, because it is equal to n+sod(n) for n = 138733239693 and 138733239702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13207440 + ... + 13217939.

It is an arithmetic number, because the mean of its divisors is an integer number (6183538920).

Almost surely, 2^138733239750 is an apocalyptic number.

138733239750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138733239750 is an abundant number, since it is smaller than the sum of its proper divisors (257013251130).

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

138733239750 is a wasteful number, since it uses less digits than its factorization.

138733239750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26425406 (or 26425396 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 51.

The spelling of 138733239750 in words is "one hundred thirty-eight billion, seven hundred thirty-three million, two hundred thirty-nine thousand, seven hundred fifty".