138608375222 has 4 divisors (see below), whose sum is σ = 207912562836. Its totient is φ = 69304187610.

The previous prime is 138608375221. The next prime is 138608375237. The reversal of 138608375222 is 222573806831.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138608375221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34652093804 + ... + 34652093807.

It is an arithmetic number, because the mean of its divisors is an integer number (51978140709).

Almost surely, 2^138608375222 is an apocalyptic number.

138608375222 is a deficient number, since it is larger than the sum of its proper divisors (69304187614).

138608375222 is an equidigital number, since it uses as much as digits as its factorization.

138608375222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69304187613.

The product of its (nonzero) digits is 967680, while the sum is 47.

The spelling of 138608375222 in words is "one hundred thirty-eight billion, six hundred eight million, three hundred seventy-five thousand, two hundred twenty-two".