671545883053 has 2 divisors, whose sum is σ = 671545883054. Its totient is φ = 671545883052.

The previous prime is 671545882993. The next prime is 671545883077. The reversal of 671545883053 is 350388545176.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 669495423529 + 2050459524 = 818227^2 + 45282^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-671545883053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 671545882985 and 671545883003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (671545883453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335772941526 + 335772941527.

It is an arithmetic number, because the mean of its divisors is an integer number (335772941527).

Almost surely, 2^671545883053 is an apocalyptic number.

It is an amenable number.

671545883053 is a deficient number, since it is larger than the sum of its proper divisors (1).

671545883053 is an equidigital number, since it uses as much as digits as its factorization.

671545883053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096000, while the sum is 55.

The spelling of 671545883053 in words is "six hundred seventy-one billion, five hundred forty-five million, eight hundred eighty-three thousand, fifty-three".