847433334749 has 2 divisors, whose sum is σ = 847433334750. Its totient is φ = 847433334748.

The previous prime is 847433334661. The next prime is 847433334767. The reversal of 847433334749 is 947433334748.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 555516808900 + 291916525849 = 745330^2 + 540293^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-847433334749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (847433354749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 423716667374 + 423716667375.

It is an arithmetic number, because the mean of its divisors is an integer number (423716667375).

Almost surely, 2^847433334749 is an apocalyptic number.

It is an amenable number.

847433334749 is a deficient number, since it is larger than the sum of its proper divisors (1).

847433334749 is an equidigital number, since it uses as much as digits as its factorization.

847433334749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73156608, while the sum is 59.

Subtracting 847433334749 from its reverse (947433334748), we obtain a palindrome (99999999999).

The spelling of 847433334749 in words is "eight hundred forty-seven billion, four hundred thirty-three million, three hundred thirty-four thousand, seven hundred forty-nine".