450123505663423 has 32 divisors (see below), whose sum is σ = 485305949620800. Its totient is φ = 415927006470144.

The previous prime is 450123505663379. The next prime is 450123505663463. The reversal of 450123505663423 is 324366505321054.

It is a cyclic number.

It is not a de Polignac number, because 450123505663423 - 2³³ = 450114915728831 is a prime.

It is a super-2 number, since 2×450123505663423² (a number of 30 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 (450123505663463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4357851963 + ... + 4357955251.

It is an arithmetic number, because the mean of its divisors is an integer number (15165810925650).

Almost surely, 2^{450123505663423} is an apocalyptic number.

450123505663423 is a deficient number, since it is larger than the sum of its proper divisors (35182443957377).

450123505663423 is a wasteful number, since it uses less digits than its factorization.

450123505663423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108939.

The product of its (nonzero) digits is 7776000, while the sum is 49.

The spelling of 450123505663423 in words is "four hundred fifty trillion, one hundred twenty-three billion, five hundred five million, six hundred sixty-three thousand, four hundred twenty-three".