450118886281 has 9 divisors (see below), whose sum is σ = 475069674573. Its totient is φ = 426416342220.

The previous prime is 450118886219. The next prime is 450118886309. The reversal of 450118886281 is 182688811054.

The square root of 450118886281 is 670909.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 450118886281 - 2²⁵ = 450085331849 is a prime.

It is a super-2 number, since 2×450118886281² (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 (450118886081) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 12729616 + ... + 12764926.

It is an arithmetic number, because the mean of its divisors is an integer number (52785519397).

Almost surely, 2^450118886281 is an apocalyptic number.

450118886281 is the 670909-th square number.

450118886281 is the 335455-th centered octagonal number.

It is an amenable number.

450118886281 is a deficient number, since it is larger than the sum of its proper divisors (24950788292).

450118886281 is an frugal number, since it uses more digits than its factorization.

450118886281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70660 (or 35330 counting only the distinct ones).

The product of its (nonzero) digits is 983040, while the sum is 52.

The spelling of 450118886281 in words is "four hundred fifty billion, one hundred eighteen million, eight hundred eighty-six thousand, two hundred eighty-one".