440163893807 has 16 divisors (see below), whose sum is σ = 493719196320. Its totient is φ = 388937894400.

The previous prime is 440163893803. The next prime is 440163893809. The reversal of 440163893807 is 708398361044.

It is not a de Polignac number, because 440163893807 - 2² = 440163893803 is a prime.

It is a super-2 number, since 2×440163893807² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440163893803) 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 15 ways as a sum of consecutive naturals, for example, 1692758 + ... + 1935395.

It is an arithmetic number, because the mean of its divisors is an integer number (30857449770).

Almost surely, 2^440163893807 is an apocalyptic number.

440163893807 is a deficient number, since it is larger than the sum of its proper divisors (53555302513).

440163893807 is a wasteful number, since it uses less digits than its factorization.

440163893807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3628474.

The product of its (nonzero) digits is 3483648, while the sum is 53.

The spelling of 440163893807 in words is "four hundred forty billion, one hundred sixty-three million, eight hundred ninety-three thousand, eight hundred seven".