454803220881 has 9 divisors (see below), whose sum is σ = 656940908091. Its totient is φ = 303200798472.

The previous prime is 454803220849. The next prime is 454803220889. The reversal of 454803220881 is 188022308454.

The square root of 454803220881 is 674391.

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

454803220881 is a `hidden beast` number, since 4 + 548 + 0 + 3 + 2 + 20 + 8 + 81 = 666.

It can be written as a sum of positive squares in only one way, i.e., 453824532225 + 978688656 = 673665^2 + 31284^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 454803220881 - 2⁵ = 454803220849 is a prime.

It is a super-2 number, since 2×454803220881² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (454803220889) 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, 1910775 + ... + 2135571.

Almost surely, 2^454803220881 is an apocalyptic number.

454803220881 is the 674391-st square number.

454803220881 is the 337196-th centered octagonal number.

It is an amenable number.

454803220881 is a deficient number, since it is larger than the sum of its proper divisors (202137687210).

454803220881 is an frugal number, since it uses more digits than its factorization.

454803220881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449600 (or 224800 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 45.

It can be divided in two parts, 454803 and 220881, that added together give a square (675684 = 822²).

The spelling of 454803220881 in words is "four hundred fifty-four billion, eight hundred three million, two hundred twenty thousand, eight hundred eighty-one".