76646064667 has 2 divisors, whose sum is σ = 76646064668. Its totient is φ = 76646064666.

The previous prime is 76646064661. The next prime is 76646064679.

76646064667 is nontrivially palindromic in base 10.

It is a weak prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 76646064667 - 2³ = 76646064659 is a prime.

It is not a weakly prime, because it can be changed into another prime (76646064661) 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, 38323032333 + 38323032334.

It is an arithmetic number, because the mean of its divisors is an integer number (38323032334).

Almost surely, 2^76646064667 is an apocalyptic number.

76646064667 is a deficient number, since it is larger than the sum of its proper divisors (1).

76646064667 is an equidigital number, since it uses as much as digits as its factorization.

76646064667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36578304, while the sum is 58.

The spelling of 76646064667 in words is "seventy-six billion, six hundred forty-six million, sixty-four thousand, six hundred sixty-seven".