450789845491 has 4 divisors (see below), whose sum is σ = 450791329392. Its totient is φ = 450788361592.

The previous prime is 450789845437. The next prime is 450789845503. The reversal of 450789845491 is 194548987054.

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 450789845491 - 2²³ = 450781456883 is a prime.

It is a super-2 number, since 2×450789845491² (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 (430789845491) 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, 102655 + ... + 955048.

It is an arithmetic number, because the mean of its divisors is an integer number (112697832348).

Almost surely, 2^450789845491 is an apocalyptic number.

450789845491 is a deficient number, since it is larger than the sum of its proper divisors (1483901).

450789845491 is a wasteful number, since it uses less digits than its factorization.

450789845491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483900.

The product of its (nonzero) digits is 58060800, while the sum is 64.

The spelling of 450789845491 in words is "four hundred fifty billion, seven hundred eighty-nine million, eight hundred forty-five thousand, four hundred ninety-one".