1449201122818 has 8 divisors (see below), whose sum is σ = 2232553081212. Its totient is φ = 705016762416.

The previous prime is 1449201122813. The next prime is 1449201122839. The reversal of 1449201122818 is 8182211029441.

It can be written as a sum of positive squares in 2 ways, for example, as 1422492738489 + 26708384329 = 1192683^2 + 163427^2 .

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

It is a super-2 number, since 2×1449201122818² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1449201122813) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 9791899405 + ... + 9791899552.

Almost surely, 2^{1449201122818} is an apocalyptic number.

1449201122818 is a deficient number, since it is larger than the sum of its proper divisors (783351958394).

1449201122818 is a wasteful number, since it uses less digits than its factorization.

1449201122818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19583798996.

The product of its (nonzero) digits is 73728, while the sum is 43.

The spelling of 1449201122818 in words is "one trillion, four hundred forty-nine billion, two hundred one million, one hundred twenty-two thousand, eight hundred eighteen".