8447963145444 has 81 divisors (see below), whose sum is σ = 21472254711817. Its totient is φ = 2800553998368.

The previous prime is 8447963145383. The next prime is 8447963145539. The reversal of 8447963145444 is 4445413697448.

The square root of 8447963145444 is 2906538.

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

8447963145444 is a `hidden beast` number, since 8 + 4 + 4 + 79 + 6 + 3 + 14 + 544 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8277301620900 + 170661524544 = 2877030^2 + 413112^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3435526687 + ... + 3435529145.

Almost surely, 2^{8447963145444} is an apocalyptic number.

8447963145444 is the 2906538-th square number.

It is an amenable number.

8447963145444 is an abundant number, since it is smaller than the sum of its proper divisors (13024291566373).

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

8447963145444 is an equidigital number, since it uses as much as digits as its factorization.

8447963145444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5322 (or 2661 counting only the distinct ones).

The product of its digits is 185794560, while the sum is 63.

The spelling of 8447963145444 in words is "eight trillion, four hundred forty-seven billion, nine hundred sixty-three million, one hundred forty-five thousand, four hundred forty-four".