8919473473 has 2 divisors, whose sum is σ = 8919473474. Its totient is φ = 8919473472.

The previous prime is 8919473471. The next prime is 8919473491. The reversal of 8919473473 is 3743749198.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8227941264 + 691532209 = 90708^2 + 26297^2 .

It is a cyclic number.

It is not a de Polignac number, because 8919473473 - 2¹ = 8919473471 is a prime.

Together with 8919473471, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (8919473471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4459736736 + 4459736737.

It is an arithmetic number, because the mean of its divisors is an integer number (4459736737).

Almost surely, 2^8919473473 is an apocalyptic number.

It is an amenable number.

8919473473 is a deficient number, since it is larger than the sum of its proper divisors (1).

8919473473 is an equidigital number, since it uses as much as digits as its factorization.

8919473473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4572288, while the sum is 55.

The square root of 8919473473 is about 94442.9641265034. The cubic root of 8919473473 is about 2073.8614529501.

The spelling of 8919473473 in words is "eight billion, nine hundred nineteen million, four hundred seventy-three thousand, four hundred seventy-three".