6506371673 has 2 divisors, whose sum is σ = 6506371674. Its totient is φ = 6506371672.

The previous prime is 6506371661. The next prime is 6506371757. The reversal of 6506371673 is 3761736056.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6477513289 + 28858384 = 80483^2 + 5372^2 .

It is a cyclic number.

It is not a de Polignac number, because 6506371673 - 2⁴ = 6506371657 is a prime.

It is not a weakly prime, because it can be changed into another prime (6506371073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3253185836 + 3253185837.

It is an arithmetic number, because the mean of its divisors is an integer number (3253185837).

Almost surely, 2^6506371673 is an apocalyptic number.

It is an amenable number.

6506371673 is a deficient number, since it is larger than the sum of its proper divisors (1).

6506371673 is an equidigital number, since it uses as much as digits as its factorization.

6506371673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 476280, while the sum is 44.

The square root of 6506371673 is about 80662.0832423760. The cubic root of 6506371673 is about 1866.8651828663.

The spelling of 6506371673 in words is "six billion, five hundred six million, three hundred seventy-one thousand, six hundred seventy-three".