138842218372 has 240 divisors, whose sum is σ = 311760525888. Its totient is φ = 53453537280.

The previous prime is 138842218369. The next prime is 138842218421. The reversal of 138842218372 is 273812248831.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1431363028 + ... + 1431363124.

Almost surely, 2^138842218372 is an apocalyptic number.

It is an amenable number.

138842218372 is an abundant number, since it is smaller than the sum of its proper divisors (172918307516).

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

138842218372 is a wasteful number, since it uses less digits than its factorization.

138842218372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248 (or 207 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 49.

The spelling of 138842218372 in words is "one hundred thirty-eight billion, eight hundred forty-two million, two hundred eighteen thousand, three hundred seventy-two".