676134530514721 has 2 divisors, whose sum is σ = 676134530514722. Its totient is φ = 676134530514720.

The previous prime is 676134530514691. The next prime is 676134530514727. The reversal of 676134530514721 is 127415035431676.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 605187601514721 + 70946929000000 = 24600561^2 + 8423000^2 .

It is a cyclic number.

It is not a de Polignac number, because 676134530514721 - 2⁵ = 676134530514689 is a prime.

It is not a weakly prime, because it can be changed into another prime (676134530514727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338067265257360 + 338067265257361.

It is an arithmetic number, because the mean of its divisors is an integer number (338067265257361).

Almost surely, 2^{676134530514721} is an apocalyptic number.

It is an amenable number.

676134530514721 is a deficient number, since it is larger than the sum of its proper divisors (1).

676134530514721 is an equidigital number, since it uses as much as digits as its factorization.

676134530514721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12700800, while the sum is 55.

The spelling of 676134530514721 in words is "six hundred seventy-six trillion, one hundred thirty-four billion, five hundred thirty million, five hundred fourteen thousand, seven hundred twenty-one".