454503840561 has 27 divisors (see below), whose sum is σ = 697447927371. Its totient is φ = 285157306944.

The previous prime is 454503840521. The next prime is 454503840563. The reversal of 454503840561 is 165048305454.

The square root of 454503840561 is 674169.

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

454503840561 is a `hidden beast` number, since 4 + 5 + 4 + 5 + 0 + 3 + 84 + 0 + 561 = 666.

It can be written as a sum of positive squares in only one way, i.e., 353852471025 + 100651369536 = 594855^2 + 317256^2 .

It is not a de Polignac number, because 454503840561 - 2⁷ = 454503840433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (454503840563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 34376010 + ... + 34389228.

Almost surely, 2^454503840561 is an apocalyptic number.

454503840561 is the 674169-th square number.

454503840561 is the 337085-th centered octagonal number.

It is an amenable number.

454503840561 is a deficient number, since it is larger than the sum of its proper divisors (242944086810).

454503840561 is an frugal number, since it uses more digits than its factorization.

454503840561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26478 (or 13239 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 45.

The spelling of 454503840561 in words is "four hundred fifty-four billion, five hundred three million, eight hundred forty thousand, five hundred sixty-one".