138138200750 has 32 divisors (see below), whose sum is σ = 282103327584. Its totient is φ = 50232072000.

The previous prime is 138138200749. The next prime is 138138200803. The reversal of 138138200750 is 57002831831.

It is a happy number.

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, 25113287 + ... + 25118786.

It is an arithmetic number, because the mean of its divisors is an integer number (8815728987).

Almost surely, 2^138138200750 is an apocalyptic number.

138138200750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138138200750 is an abundant number, since it is smaller than the sum of its proper divisors (143965126834).

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

138138200750 is a wasteful number, since it uses less digits than its factorization.

138138200750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50232101 (or 50232091 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 138138200750 in words is "one hundred thirty-eight billion, one hundred thirty-eight million, two hundred thousand, seven hundred fifty".