672053703817 has 2 divisors, whose sum is σ = 672053703818. Its totient is φ = 672053703816.

The previous prime is 672053703809. The next prime is 672053703857. The reversal of 672053703817 is 718307350276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 644686949776 + 27366754041 = 802924^2 + 165429^2 .

It is a cyclic number.

It is not a de Polignac number, because 672053703817 - 2³ = 672053703809 is a prime.

It is not a weakly prime, because it can be changed into another prime (672053703857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336026851908 + 336026851909.

It is an arithmetic number, because the mean of its divisors is an integer number (336026851909).

Almost surely, 2^672053703817 is an apocalyptic number.

It is an amenable number.

672053703817 is a deficient number, since it is larger than the sum of its proper divisors (1).

672053703817 is an equidigital number, since it uses as much as digits as its factorization.

672053703817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1481760, while the sum is 49.

The spelling of 672053703817 in words is "six hundred seventy-two billion, fifty-three million, seven hundred three thousand, eight hundred seventeen".