440771680369 has 16 divisors (see below), whose sum is σ = 476931369600. Its totient is φ = 406097714176.

The previous prime is 440771680289. The next prime is 440771680397. The reversal of 440771680369 is 963086177044.

It is a cyclic number.

It is not a de Polignac number, because 440771680369 - 2¹⁵ = 440771647601 is a prime.

It is a super-2 number, since 2×440771680369² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440771680469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 509104 + ... + 1068049.

It is an arithmetic number, because the mean of its divisors is an integer number (29808210600).

Almost surely, 2^440771680369 is an apocalyptic number.

It is an amenable number.

440771680369 is a deficient number, since it is larger than the sum of its proper divisors (36159689231).

440771680369 is a wasteful number, since it uses less digits than its factorization.

440771680369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1577624.

The product of its (nonzero) digits is 6096384, while the sum is 55.

The spelling of 440771680369 in words is "four hundred forty billion, seven hundred seventy-one million, six hundred eighty thousand, three hundred sixty-nine".