64906446679 has 2 divisors, whose sum is σ = 64906446680. Its totient is φ = 64906446678.

The previous prime is 64906446653. The next prime is 64906446691. The reversal of 64906446679 is 97664460946.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64906446679 - 2⁷ = 64906446551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64906449679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32453223339 + 32453223340.

It is an arithmetic number, because the mean of its divisors is an integer number (32453223340).

Almost surely, 2^64906446679 is an apocalyptic number.

64906446679 is a deficient number, since it is larger than the sum of its proper divisors (1).

64906446679 is an equidigital number, since it uses as much as digits as its factorization.

64906446679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47029248, while the sum is 61.

The spelling of 64906446679 in words is "sixty-four billion, nine hundred six million, four hundred forty-six thousand, six hundred seventy-nine".