1644796865114 has 64 divisors (see below), whose sum is σ = 2712532015872. Its totient is φ = 743410483200.

The previous prime is 1644796865111. The next prime is 1644796865119. The reversal of 1644796865114 is 4115686974461.

It is not an unprimeable number, because it can be changed into a prime (1644796865111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 242199059 + ... + 242205849.

It is an arithmetic number, because the mean of its divisors is an integer number (42383312748).

Almost surely, 2^{1644796865114} is an apocalyptic number.

1644796865114 is a deficient number, since it is larger than the sum of its proper divisors (1067735150758).

1644796865114 is a wasteful number, since it uses less digits than its factorization.

1644796865114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7671.

The product of its digits is 34836480, while the sum is 62.

The spelling of 1644796865114 in words is "one trillion, six hundred forty-four billion, seven hundred ninety-six million, eight hundred sixty-five thousand, one hundred fourteen".