4581465144464 has 40 divisors (see below), whose sum is σ = 9792559428792. Its totient is φ = 2062948654080.

The previous prime is 4581465144457. The next prime is 4581465144467. The reversal of 4581465144464 is 4644415641854.

It can be written as a sum of positive squares in 4 ways, for example, as 24521054464 + 4556944090000 = 156592^2 + 2134700^2 .

It is not an unprimeable number, because it can be changed into a prime (4581465144467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268604579 + ... + 268621634.

Almost surely, 2^{4581465144464} is an apocalyptic number.

It is an amenable number.

4581465144464 is an abundant number, since it is smaller than the sum of its proper divisors (5211094284328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4581465144464 is a wasteful number, since it uses less digits than its factorization.

4581465144464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537226275 (or 537226269 counting only the distinct ones).

The product of its digits is 29491200, while the sum is 56.

The spelling of 4581465144464 in words is "four trillion, five hundred eighty-one billion, four hundred sixty-five million, one hundred forty-four thousand, four hundred sixty-four".