671305615763 has 2 divisors, whose sum is σ = 671305615764. Its totient is φ = 671305615762.

The previous prime is 671305615723. The next prime is 671305615787. The reversal of 671305615763 is 367516503176.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 671305615763 - 2²⁰ = 671304567187 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (671305615723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335652807881 + 335652807882.

It is an arithmetic number, because the mean of its divisors is an integer number (335652807882).

Almost surely, 2^671305615763 is an apocalyptic number.

671305615763 is a deficient number, since it is larger than the sum of its proper divisors (1).

671305615763 is an equidigital number, since it uses as much as digits as its factorization.

671305615763 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2381400, while the sum is 50.

The spelling of 671305615763 in words is "six hundred seventy-one billion, three hundred five million, six hundred fifteen thousand, seven hundred sixty-three".