450381350643 has 16 divisors (see below), whose sum is σ = 686364691200. Its totient is φ = 257334784416.

The previous prime is 450381350621. The next prime is 450381350689. The reversal of 450381350643 is 346053183054.

It is a de Polignac number, because none of the positive numbers 2^k-450381350643 is a prime.

It is a super-2 number, since 2×450381350643² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 450381350595 and 450381350604.

It is not an unprimeable number, because it can be changed into a prime (450381350603) 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, 868905 + ... + 1286762.

It is an arithmetic number, because the mean of its divisors is an integer number (42897793200).

Almost surely, 2^450381350643 is an apocalyptic number.

450381350643 is a deficient number, since it is larger than the sum of its proper divisors (235983340557).

450381350643 is a wasteful number, since it uses less digits than its factorization.

450381350643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2165626.

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 450381350643 in words is "four hundred fifty billion, three hundred eighty-one million, three hundred fifty thousand, six hundred forty-three".