122173040648 has 16 divisors (see below), whose sum is σ = 230261368380. Its totient is φ = 60770009088.

The previous prime is 122173040597. The next prime is 122173040711. The reversal of 122173040648 is 846040371221.

It can be written as a sum of positive squares in 2 ways, for example, as 94090654564 + 28082386084 = 306742^2 + 167578^2 .

It is a super-3 number, since 3×122173040648³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39562265 + ... + 39565352.

Almost surely, 2^122173040648 is an apocalyptic number.

It is an amenable number.

122173040648 is a deficient number, since it is larger than the sum of its proper divisors (108088327732).

122173040648 is a wasteful number, since it uses less digits than its factorization.

122173040648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79127816 (or 79127812 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The spelling of 122173040648 in words is "one hundred twenty-two billion, one hundred seventy-three million, forty thousand, six hundred forty-eight".