672317761097 has 2 divisors, whose sum is σ = 672317761098. Its totient is φ = 672317761096.

The previous prime is 672317760997. The next prime is 672317761133. The reversal of 672317761097 is 790167713276.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 537140944201 + 135176816896 = 732899^2 + 367664^2 .

It is a cyclic number.

It is not a de Polignac number, because 672317761097 - 2¹⁸ = 672317498953 is a prime.

It is a super-2 number, since 2×672317761097² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (672317760097) 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, 336158880548 + 336158880549.

It is an arithmetic number, because the mean of its divisors is an integer number (336158880549).

Almost surely, 2^672317761097 is an apocalyptic number.

It is an amenable number.

672317761097 is a deficient number, since it is larger than the sum of its proper divisors (1).

672317761097 is an equidigital number, since it uses as much as digits as its factorization.

672317761097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4667544, while the sum is 56.

The spelling of 672317761097 in words is "six hundred seventy-two billion, three hundred seventeen million, seven hundred sixty-one thousand, ninety-seven".