9812434673 has 2 divisors, whose sum is σ = 9812434674. Its totient is φ = 9812434672.

The previous prime is 9812434657. The next prime is 9812434711. The reversal of 9812434673 is 3764342189.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6605137984 + 3207296689 = 81272^2 + 56633^2 .

It is a cyclic number.

It is not a de Polignac number, because 9812434673 - 2⁴ = 9812434657 is a prime.

It is not a weakly prime, because it can be changed into another prime (9812434273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4906217336 + 4906217337.

It is an arithmetic number, because the mean of its divisors is an integer number (4906217337).

Almost surely, 2^9812434673 is an apocalyptic number.

It is an amenable number.

9812434673 is a deficient number, since it is larger than the sum of its proper divisors (1).

9812434673 is an equidigital number, since it uses as much as digits as its factorization.

9812434673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 47.

The square root of 9812434673 is about 99057.7340392965. The cubic root of 9812434673 is about 2140.8796768511.

The spelling of 9812434673 in words is "nine billion, eight hundred twelve million, four hundred thirty-four thousand, six hundred seventy-three".