6481434473 has 2 divisors, whose sum is σ = 6481434474. Its totient is φ = 6481434472.

The previous prime is 6481434437. The next prime is 6481434493. The reversal of 6481434473 is 3744341846.

Together with previous prime (6481434437) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6014312704 + 467121769 = 77552^2 + 21613^2 .

It is a cyclic number.

It is not a de Polignac number, because 6481434473 - 2²² = 6477240169 is a prime.

It is not a weakly prime, because it can be changed into another prime (6481434493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3240717236 + 3240717237.

It is an arithmetic number, because the mean of its divisors is an integer number (3240717237).

Almost surely, 2^6481434473 is an apocalyptic number.

It is an amenable number.

6481434473 is a deficient number, since it is larger than the sum of its proper divisors (1).

6481434473 is an equidigital number, since it uses as much as digits as its factorization.

6481434473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 774144, while the sum is 44.

The square root of 6481434473 is about 80507.3566390054. The cubic root of 6481434473 is about 1864.4770625932.

The spelling of 6481434473 in words is "six billion, four hundred eighty-one million, four hundred thirty-four thousand, four hundred seventy-three".