7845547667049 has 12 divisors (see below), whose sum is σ = 11487696889396. Its totient is φ = 5158716273792.

The previous prime is 7845547667011. The next prime is 7845547667063. The reversal of 7845547667049 is 9407667455487.

7845547667049 is a `hidden beast` number, since 7 + 8 + 4 + 5 + 547 + 6 + 6 + 70 + 4 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5106876825600 + 2738670841449 = 2259840^2 + 1654893^2 .

It is not a de Polignac number, because 7845547667049 - 2¹¹ = 7845547665001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7845547667449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5970735772 + ... + 5970737085.

Almost surely, 2^{7845547667049} is an apocalyptic number.

It is an amenable number.

7845547667049 is a deficient number, since it is larger than the sum of its proper divisors (3642149222347).

7845547667049 is a wasteful number, since it uses less digits than its factorization.

7845547667049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11941472936 (or 11941472933 counting only the distinct ones).

The product of its (nonzero) digits is 1422489600, while the sum is 72.

The spelling of 7845547667049 in words is "seven trillion, eight hundred forty-five billion, five hundred forty-seven million, six hundred sixty-seven thousand, forty-nine".