8405973694047 has 16 divisors (see below), whose sum is σ = 11376481452032. Its totient is φ = 5519742338880.

The previous prime is 8405973694039. The next prime is 8405973694067. The reversal of 8405973694047 is 7404963795048.

It is not a de Polignac number, because 8405973694047 - 2³ = 8405973694039 is a prime.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8405973694007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 405343 + ... + 4120224.

It is an arithmetic number, because the mean of its divisors is an integer number (711030090752).

Almost surely, 2^{8405973694047} is an apocalyptic number.

8405973694047 is a deficient number, since it is larger than the sum of its proper divisors (2970507757985).

8405973694047 is a wasteful number, since it uses less digits than its factorization.

8405973694047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4534878.

The product of its (nonzero) digits is 182891520, while the sum is 66.

The spelling of 8405973694047 in words is "eight trillion, four hundred five billion, nine hundred seventy-three million, six hundred ninety-four thousand, forty-seven".