122446649845 has 8 divisors (see below), whose sum is σ = 158238747576. Its totient is φ = 90422141376.

The previous prime is 122446649837. The next prime is 122446649851. The reversal of 122446649845 is 548946644221.

It can be written as a sum of positive squares in 4 ways, for example, as 29542390641 + 92904259204 = 171879^2 + 304802^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122446649845 - 2³ = 122446649837 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 941897242 + ... + 941897371.

It is an arithmetic number, because the mean of its divisors is an integer number (19779843447).

Almost surely, 2^122446649845 is an apocalyptic number.

It is an amenable number.

122446649845 is a deficient number, since it is larger than the sum of its proper divisors (35792097731).

122446649845 is a wasteful number, since it uses less digits than its factorization.

122446649845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1883794631.

The product of its digits is 13271040, while the sum is 55.

The spelling of 122446649845 in words is "one hundred twenty-two billion, four hundred forty-six million, six hundred forty-nine thousand, eight hundred forty-five".