1244138400168 has 16 divisors (see below), whose sum is σ = 3110346000480. Its totient is φ = 414712800048.

The previous prime is 1244138400133. The next prime is 1244138400191. The reversal of 1244138400168 is 8610048314421.

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 3 ways as a sum of consecutive naturals, for example, 25919549980 + ... + 25919550027.

It is an arithmetic number, because the mean of its divisors is an integer number (194396625030).

Almost surely, 2^{1244138400168} is an apocalyptic number.

It is an amenable number.

1244138400168 is an abundant number, since it is smaller than the sum of its proper divisors (1866207600312).

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

1244138400168 is a wasteful number, since it uses less digits than its factorization.

1244138400168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51839100016 (or 51839100012 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 42.

The spelling of 1244138400168 in words is "one trillion, two hundred forty-four billion, one hundred thirty-eight million, four hundred thousand, one hundred sixty-eight".