138196987230 has 32 divisors (see below), whose sum is σ = 342371893248. Its totient is φ = 35663738400.

The previous prime is 138196987223. The next prime is 138196987277. The reversal of 138196987230 is 32789691831.

138196987230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74298526 + ... + 74300385.

It is an arithmetic number, because the mean of its divisors is an integer number (10699121664).

Almost surely, 2^138196987230 is an apocalyptic number.

138196987230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138196987230 is an abundant number, since it is smaller than the sum of its proper divisors (204174906018).

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

138196987230 is a wasteful number, since it uses less digits than its factorization.

138196987230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148598952.

The product of its (nonzero) digits is 3919104, while the sum is 57.

The spelling of 138196987230 in words is "one hundred thirty-eight billion, one hundred ninety-six million, nine hundred eighty-seven thousand, two hundred thirty".