64319846999 has 2 divisors, whose sum is σ = 64319847000. Its totient is φ = 64319846998.

The previous prime is 64319846971. The next prime is 64319847017. The reversal of 64319846999 is 99964891346.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64319846999 - 2³² = 60024879703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64319846939) 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, 32159923499 + 32159923500.

It is an arithmetic number, because the mean of its divisors is an integer number (32159923500).

Almost surely, 2^64319846999 is an apocalyptic number.

64319846999 is a deficient number, since it is larger than the sum of its proper divisors (1).

64319846999 is an equidigital number, since it uses as much as digits as its factorization.

64319846999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90699264, while the sum is 68.

The spelling of 64319846999 in words is "sixty-four billion, three hundred nineteen million, eight hundred forty-six thousand, nine hundred ninety-nine".