454247561505 has 32 divisors (see below), whose sum is σ = 767892700800. Its totient is φ = 228661304832.

The previous prime is 454247561503. The next prime is 454247561513. The reversal of 454247561505 is 505165742454.

It is not a de Polignac number, because 454247561505 - 2¹ = 454247561503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (454247561503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2885884 + ... + 3039213.

It is an arithmetic number, because the mean of its divisors is an integer number (23996646900).

Almost surely, 2^454247561505 is an apocalyptic number.

It is an amenable number.

454247561505 is a deficient number, since it is larger than the sum of its proper divisors (313645139295).

454247561505 is a wasteful number, since it uses less digits than its factorization.

454247561505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5925393.

The product of its (nonzero) digits is 3360000, while the sum is 48.

The spelling of 454247561505 in words is "four hundred fifty-four billion, two hundred forty-seven million, five hundred sixty-one thousand, five hundred five".