450445461563 has 4 divisors (see below), whose sum is σ = 450447029928. Its totient is φ = 450443893200.

The previous prime is 450445461559. The next prime is 450445461581. The reversal of 450445461563 is 365164544054.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 450445461563 - 2² = 450445461559 is a prime.

It is a super-2 number, since 2×450445461563² (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 (450445461523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216281 + ... + 973482.

It is an arithmetic number, because the mean of its divisors is an integer number (112611757482).

Almost surely, 2^450445461563 is an apocalyptic number.

450445461563 is a deficient number, since it is larger than the sum of its proper divisors (1568365).

450445461563 is a wasteful number, since it uses less digits than its factorization.

450445461563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568364.

The product of its (nonzero) digits is 3456000, while the sum is 47.

The spelling of 450445461563 in words is "four hundred fifty billion, four hundred forty-five million, four hundred sixty-one thousand, five hundred sixty-three".