122443811281648 has 20 divisors (see below), whose sum is σ = 237235061249680. Its totient is φ = 61221859991424.

The previous prime is 122443811281639. The next prime is 122443811281651. The reversal of 122443811281648 is 846182118344221.

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 3 ways as a sum of consecutive naturals, for example, 32703868 + ... + 36255076.

It is an arithmetic number, because the mean of its divisors is an integer number (11861753062484).

Almost surely, 2^{122443811281648} is an apocalyptic number.

It is an amenable number.

122443811281648 is a deficient number, since it is larger than the sum of its proper divisors (114791249968032).

122443811281648 is a wasteful number, since it uses less digits than its factorization.

122443811281648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5706184 (or 5706178 counting only the distinct ones).

The product of its digits is 4718592, while the sum is 55.

The spelling of 122443811281648 in words is "one hundred twenty-two trillion, four hundred forty-three billion, eight hundred eleven million, two hundred eighty-one thousand, six hundred forty-eight".