7982561084445 has 56 divisors (see below), whose sum is σ = 14363985117816. Its totient is φ = 4256789303808.

The previous prime is 7982561084429. The next prime is 7982561084467. The reversal of 7982561084445 is 5444801652897.

It is a happy number.

7982561084445 is a `hidden beast` number, since 7 + 9 + 8 + 2 + 5 + 610 + 8 + 4 + 4 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 108913860441 + 7873647224004 = 330021^2 + 2806002^2 .

It is not a de Polignac number, because 7982561084445 - 2⁴ = 7982561084429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 27473649 + ... + 27762681.

Almost surely, 2^{7982561084445} is an apocalyptic number.

It is an amenable number.

7982561084445 is a deficient number, since it is larger than the sum of its proper divisors (6381424033371).

7982561084445 is an equidigital number, since it uses as much as digits as its factorization.

7982561084445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296633 (or 296618 counting only the distinct ones).

The product of its (nonzero) digits is 77414400, while the sum is 63.

The spelling of 7982561084445 in words is "seven trillion, nine hundred eighty-two billion, five hundred sixty-one million, eighty-four thousand, four hundred forty-five".