873661047563 has 2 divisors, whose sum is σ = 873661047564. Its totient is φ = 873661047562.

The previous prime is 873661047529. The next prime is 873661047587. The reversal of 873661047563 is 365740166378.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 873661047563 - 2⁶ = 873661047499 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 873661047499 and 873661047508.

It is not a weakly prime, because it can be changed into another prime (873661046563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436830523781 + 436830523782.

It is an arithmetic number, because the mean of its divisors is an integer number (436830523782).

Almost surely, 2^873661047563 is an apocalyptic number.

873661047563 is a deficient number, since it is larger than the sum of its proper divisors (1).

873661047563 is an equidigital number, since it uses as much as digits as its factorization.

873661047563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15240960, while the sum is 56.

The spelling of 873661047563 in words is "eight hundred seventy-three billion, six hundred sixty-one million, forty-seven thousand, five hundred sixty-three".