947133312491573 has 2 divisors, whose sum is σ = 947133312491574. Its totient is φ = 947133312491572.

The previous prime is 947133312491507. The next prime is 947133312491581. The reversal of 947133312491573 is 375194213331749.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 873490518046129 + 73642794445444 = 29554873^2 + 8581538^2 .

It is a cyclic number.

It is not a de Polignac number, because 947133312491573 - 2³⁴ = 947116132622389 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (947133312431573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473566656245786 + 473566656245787.

It is an arithmetic number, because the mean of its divisors is an integer number (473566656245787).

Almost surely, 2^{947133312491573} is an apocalyptic number.

It is an amenable number.

947133312491573 is a deficient number, since it is larger than the sum of its proper divisors (1).

947133312491573 is an equidigital number, since it uses as much as digits as its factorization.

947133312491573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51438240, while the sum is 62.

The spelling of 947133312491573 in words is "nine hundred forty-seven trillion, one hundred thirty-three billion, three hundred twelve million, four hundred ninety-one thousand, five hundred seventy-three".