947749544473 has 2 divisors, whose sum is σ = 947749544474. Its totient is φ = 947749544472.

The previous prime is 947749544447. The next prime is 947749544477. The reversal of 947749544473 is 374445947749.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 512272295824 + 435477248649 = 715732^2 + 659907^2 .

It is a cyclic number.

It is not a de Polignac number, because 947749544473 - 2¹³ = 947749536281 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 947749544399 and 947749544408.

It is not a weakly prime, because it can be changed into another prime (947749544477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473874772236 + 473874772237.

It is an arithmetic number, because the mean of its divisors is an integer number (473874772237).

Almost surely, 2^947749544473 is an apocalyptic number.

It is an amenable number.

947749544473 is a deficient number, since it is larger than the sum of its proper divisors (1).

947749544473 is an equidigital number, since it uses as much as digits as its factorization.

947749544473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 426746880, while the sum is 67.

The spelling of 947749544473 in words is "nine hundred forty-seven billion, seven hundred forty-nine million, five hundred forty-four thousand, four hundred seventy-three".