450840381719 has 32 divisors (see below), whose sum is σ = 561636915840. Its totient is φ = 352384929792.

The previous prime is 450840381643. The next prime is 450840381727. The reversal of 450840381719 is 917183048054.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-450840381719 is a prime.

It is a super-2 number, since 2×450840381719² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450840381749) 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 31 ways as a sum of consecutive naturals, for example, 3275267 + ... + 3410139.

It is an arithmetic number, because the mean of its divisors is an integer number (17551153620).

Almost surely, 2^450840381719 is an apocalyptic number.

450840381719 is a deficient number, since it is larger than the sum of its proper divisors (110796534121).

450840381719 is a wasteful number, since it uses less digits than its factorization.

450840381719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135339.

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 450840381719 in words is "four hundred fifty billion, eight hundred forty million, three hundred eighty-one thousand, seven hundred nineteen".