671375322433 has 2 divisors, whose sum is σ = 671375322434. Its totient is φ = 671375322432.

The previous prime is 671375322379. The next prime is 671375322439. The reversal of 671375322433 is 334223573176.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 638477706304 + 32897616129 = 799048^2 + 181377^2 .

It is a cyclic number.

It is not a de Polignac number, because 671375322433 - 2¹³ = 671375314241 is a prime.

It is not a weakly prime, because it can be changed into another prime (671375322439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335687661216 + 335687661217.

It is an arithmetic number, because the mean of its divisors is an integer number (335687661217).

Almost surely, 2^671375322433 is an apocalyptic number.

It is an amenable number.

671375322433 is a deficient number, since it is larger than the sum of its proper divisors (1).

671375322433 is an equidigital number, since it uses as much as digits as its factorization.

671375322433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1905120, while the sum is 46.

The spelling of 671375322433 in words is "six hundred seventy-one billion, three hundred seventy-five million, three hundred twenty-two thousand, four hundred thirty-three".