873123316973 has 4 divisors (see below), whose sum is σ = 882124588380. Its totient is φ = 864122045568.

The previous prime is 873123316951. The next prime is 873123316999. The reversal of 873123316973 is 379613321378.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 611620971844 + 261502345129 = 782062^2 + 511373^2 .

It is a cyclic number.

It is not a de Polignac number, because 873123316973 - 2¹⁴ = 873123300589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (873123316943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4500635558 + ... + 4500635751.

It is an arithmetic number, because the mean of its divisors is an integer number (220531147095).

Almost surely, 2^873123316973 is an apocalyptic number.

It is an amenable number.

873123316973 is a deficient number, since it is larger than the sum of its proper divisors (9001271407).

873123316973 is an equidigital number, since it uses as much as digits as its factorization.

873123316973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9001271406.

The product of its digits is 3429216, while the sum is 53.

The spelling of 873123316973 in words is "eight hundred seventy-three billion, one hundred twenty-three million, three hundred sixteen thousand, nine hundred seventy-three".