8543739473 has 2 divisors, whose sum is σ = 8543739474. Its totient is φ = 8543739472.

The previous prime is 8543739467. The next prime is 8543739509. The reversal of 8543739473 is 3749373458.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4570706449 + 3973033024 = 67607^2 + 63032^2 .

It is a cyclic number.

It is not a de Polignac number, because 8543739473 - 2⁶ = 8543739409 is a prime.

It is not a weakly prime, because it can be changed into another prime (8543732473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4271869736 + 4271869737.

It is an arithmetic number, because the mean of its divisors is an integer number (4271869737).

Almost surely, 2^8543739473 is an apocalyptic number.

It is an amenable number.

8543739473 is a deficient number, since it is larger than the sum of its proper divisors (1).

8543739473 is an equidigital number, since it uses as much as digits as its factorization.

8543739473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7620480, while the sum is 53.

The square root of 8543739473 is about 92432.3507923498. The cubic root of 8543739473 is about 2044.3221409343.

The spelling of 8543739473 in words is "eight billion, five hundred forty-three million, seven hundred thirty-nine thousand, four hundred seventy-three".