138786920214 has 16 divisors (see below), whose sum is σ = 277578349680. Its totient is φ = 46261555200.

The previous prime is 138786920171. The next prime is 138786920243. The reversal of 138786920214 is 412029687831.

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 7 ways as a sum of consecutive naturals, for example, 316314 + ... + 614514.

It is an arithmetic number, because the mean of its divisors is an integer number (17348646855).

Almost surely, 2^138786920214 is an apocalyptic number.

138786920214 is an abundant number, since it is smaller than the sum of its proper divisors (138791429466).

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

138786920214 is a wasteful number, since it uses less digits than its factorization.

138786920214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375775.

The product of its (nonzero) digits is 1161216, while the sum is 51.

The spelling of 138786920214 in words is "one hundred thirty-eight billion, seven hundred eighty-six million, nine hundred twenty thousand, two hundred fourteen".