450018651889 has 16 divisors (see below), whose sum is σ = 477373446144. Its totient is φ = 423315604800.

The previous prime is 450018651871. The next prime is 450018651893. The reversal of 450018651889 is 988156810054.

It is a cyclic number.

It is not a de Polignac number, because 450018651889 - 2⁹ = 450018651377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450018651869) 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, 8139312 + ... + 8194414.

It is an arithmetic number, because the mean of its divisors is an integer number (29835840384).

Almost surely, 2^450018651889 is an apocalyptic number.

It is an amenable number.

450018651889 is a deficient number, since it is larger than the sum of its proper divisors (27354794255).

450018651889 is a wasteful number, since it uses less digits than its factorization.

450018651889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61008.

The product of its (nonzero) digits is 2764800, while the sum is 55.

The spelling of 450018651889 in words is "four hundred fifty billion, eighteen million, six hundred fifty-one thousand, eight hundred eighty-nine".