122449544178 has 32 divisors (see below), whose sum is σ = 266298055296. Its totient is φ = 37310986368.

The previous prime is 122449544167. The next prime is 122449544251. The reversal of 122449544178 is 871445944221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 122449544178.

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 15 ways as a sum of consecutive naturals, for example, 7612675 + ... + 7628742.

It is an arithmetic number, because the mean of its divisors is an integer number (8321814228).

Almost surely, 2^122449544178 is an apocalyptic number.

122449544178 is an abundant number, since it is smaller than the sum of its proper divisors (143848511118).

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

122449544178 is a wasteful number, since it uses less digits than its factorization.

122449544178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15241538.

The product of its digits is 2580480, while the sum is 51.

The spelling of 122449544178 in words is "one hundred twenty-two billion, four hundred forty-nine million, five hundred forty-four thousand, one hundred seventy-eight".