676264066369 has 2 divisors, whose sum is σ = 676264066370. Its totient is φ = 676264066368.

The previous prime is 676264066367. The next prime is 676264066397. The reversal of 676264066369 is 963660462676.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 669104368144 + 7159698225 = 817988^2 + 84615^2 .

It is a cyclic number.

It is not a de Polignac number, because 676264066369 - 2¹ = 676264066367 is a prime.

It is a super-2 number, since 2×676264066369² (a number of 24 digits) contains 22 as substring.

Together with 676264066367, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (676264066367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338132033184 + 338132033185.

It is an arithmetic number, because the mean of its divisors is an integer number (338132033185).

Almost surely, 2^676264066369 is an apocalyptic number.

It is an amenable number.

676264066369 is a deficient number, since it is larger than the sum of its proper divisors (1).

676264066369 is an equidigital number, since it uses as much as digits as its factorization.

676264066369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70543872, while the sum is 61.

The spelling of 676264066369 in words is "six hundred seventy-six billion, two hundred sixty-four million, sixty-six thousand, three hundred sixty-nine".