138738205451184 has 20 divisors (see below), whose sum is σ = 358407030749016. Its totient is φ = 46246068483712.

The previous prime is 138738205451171. The next prime is 138738205451243. The reversal of 138738205451184 is 481154502837831.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1445189640069 + ... + 1445189640164.

Almost surely, 2^{138738205451184} is an apocalyptic number.

It is an amenable number.

138738205451184 is an abundant number, since it is smaller than the sum of its proper divisors (219668825297832).

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

138738205451184 is a wasteful number, since it uses less digits than its factorization.

138738205451184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2890379280244 (or 2890379280238 counting only the distinct ones).

The product of its (nonzero) digits is 25804800, while the sum is 60.

The spelling of 138738205451184 in words is "one hundred thirty-eight trillion, seven hundred thirty-eight billion, two hundred five million, four hundred fifty-one thousand, one hundred eighty-four".