440949155217 has 16 divisors (see below), whose sum is σ = 622642142592. Its totient is φ = 276618118400.

The previous prime is 440949155203. The next prime is 440949155219. The reversal of 440949155217 is 712551949044.

It is a cyclic number.

It is not a de Polignac number, because 440949155217 - 2⁷ = 440949155089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 440949155217.

It is not an unprimeable number, because it can be changed into a prime (440949155219) 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, 617034 + ... + 1123667.

It is an arithmetic number, because the mean of its divisors is an integer number (38915133912).

Almost surely, 2^440949155217 is an apocalyptic number.

It is an amenable number.

440949155217 is a deficient number, since it is larger than the sum of its proper divisors (181692987375).

440949155217 is a wasteful number, since it uses less digits than its factorization.

440949155217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1745688.

The product of its (nonzero) digits is 1814400, while the sum is 51.

The spelling of 440949155217 in words is "four hundred forty billion, nine hundred forty-nine million, one hundred fifty-five thousand, two hundred seventeen".