676200678414409 has 2 divisors, whose sum is σ = 676200678414410. Its totient is φ = 676200678414408.

The previous prime is 676200678414383. The next prime is 676200678414421. The reversal of 676200678414409 is 904414876002676.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 639594064298809 + 36606614115600 = 25290197^2 + 6050340^2 .

It is a cyclic number.

It is not a de Polignac number, because 676200678414409 - 2⁷ = 676200678414281 is a prime.

It is not a weakly prime, because it can be changed into another prime (676200678414449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338100339207204 + 338100339207205.

It is an arithmetic number, because the mean of its divisors is an integer number (338100339207205).

Almost surely, 2^{676200678414409} is an apocalyptic number.

It is an amenable number.

676200678414409 is a deficient number, since it is larger than the sum of its proper divisors (1).

676200678414409 is an equidigital number, since it uses as much as digits as its factorization.

676200678414409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97542144, while the sum is 64.

The spelling of 676200678414409 in words is "six hundred seventy-six trillion, two hundred billion, six hundred seventy-eight million, four hundred fourteen thousand, four hundred nine".