6816576973 has 2 divisors, whose sum is σ = 6816576974. Its totient is φ = 6816576972.

The previous prime is 6816576931. The next prime is 6816576979. The reversal of 6816576973 is 3796756186.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6310236969 + 506340004 = 79437^2 + 22502^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6816576973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6816576979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3408288486 + 3408288487.

It is an arithmetic number, because the mean of its divisors is an integer number (3408288487).

Almost surely, 2^6816576973 is an apocalyptic number.

It is an amenable number.

6816576973 is a deficient number, since it is larger than the sum of its proper divisors (1).

6816576973 is an equidigital number, since it uses as much as digits as its factorization.

6816576973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11430720, while the sum is 58.

The square root of 6816576973 is about 82562.5639924052. The cubic root of 6816576973 is about 1896.0747191923.

The spelling of 6816576973 in words is "six billion, eight hundred sixteen million, five hundred seventy-six thousand, nine hundred seventy-three".