122809949946 has 24 divisors (see below), whose sum is σ = 266098899924. Its totient is φ = 40935007680.

The previous prime is 122809949891. The next prime is 122809949971. The reversal of 122809949946 is 649949908221.

122809949946 is a `hidden beast` number, since 1 + 22 + 80 + 9 + 9 + 499 + 46 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 97743144321 + 25066805625 = 312639^2 + 158325^2 .

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

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 11 ways as a sum of consecutive naturals, for example, 376276 + ... + 622256.

Almost surely, 2^122809949946 is an apocalyptic number.

122809949946 is an abundant number, since it is smaller than the sum of its proper divisors (143288949978).

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

122809949946 is a wasteful number, since it uses less digits than its factorization.

122809949946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273726 (or 273723 counting only the distinct ones).

The product of its (nonzero) digits is 20155392, while the sum is 63.

The spelling of 122809949946 in words is "one hundred twenty-two billion, eight hundred nine million, nine hundred forty-nine thousand, nine hundred forty-six".