450360989789 has 4 divisors (see below), whose sum is σ = 451435837440. Its totient is φ = 449286142140.

The previous prime is 450360989779. The next prime is 450360989797. The reversal of 450360989789 is 987989063054.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 450360989789 - 2⁴ = 450360989773 is a prime.

It is a super-2 number, since 2×450360989789² (a number of 24 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 (450360989779) 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, 537423197 + ... + 537424034.

It is an arithmetic number, because the mean of its divisors is an integer number (112858959360).

Almost surely, 2^450360989789 is an apocalyptic number.

It is an amenable number.

450360989789 is a deficient number, since it is larger than the sum of its proper divisors (1074847651).

450360989789 is a wasteful number, since it uses less digits than its factorization.

450360989789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074847650.

The product of its (nonzero) digits is 117573120, while the sum is 68.

The spelling of 450360989789 in words is "four hundred fifty billion, three hundred sixty million, nine hundred eighty-nine thousand, seven hundred eighty-nine".