138210186936 has 64 divisors (see below), whose sum is σ = 353870042400. Its totient is φ = 44970467328.

The previous prime is 138210186893. The next prime is 138210186943. The reversal of 138210186936 is 639681012831.

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 15 ways as a sum of consecutive naturals, for example, 236691 + ... + 576578.

Almost surely, 2^138210186936 is an apocalyptic number.

It is an amenable number.

138210186936 is an abundant number, since it is smaller than the sum of its proper divisors (215659855464).

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

138210186936 is a wasteful number, since it uses less digits than its factorization.

138210186936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813448 (or 813444 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 48.

The spelling of 138210186936 in words is "one hundred thirty-eight billion, two hundred ten million, one hundred eighty-six thousand, nine hundred thirty-six".