138873788102 has 32 divisors (see below), whose sum is σ = 241776530688. Its totient is φ = 58591675296.

The previous prime is 138873788093. The next prime is 138873788129. The reversal of 138873788102 is 201887378831.

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, 1451633 + ... + 1544339.

It is an arithmetic number, because the mean of its divisors is an integer number (7555516584).

Almost surely, 2^138873788102 is an apocalyptic number.

138873788102 is a deficient number, since it is larger than the sum of its proper divisors (102902742586).

138873788102 is a wasteful number, since it uses less digits than its factorization.

138873788102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94380.

The product of its (nonzero) digits is 3612672, while the sum is 56.

The spelling of 138873788102 in words is "one hundred thirty-eight billion, eight hundred seventy-three million, seven hundred eighty-eight thousand, one hundred two".