65393910019 has 2 divisors, whose sum is σ = 65393910020. Its totient is φ = 65393910018.

The previous prime is 65393909983. The next prime is 65393910059. The reversal of 65393910019 is 91001939356.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65393910019 - 2⁹ = 65393909507 is a prime.

It is a super-2 number, since 2×65393910019² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65393910059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32696955009 + 32696955010.

It is an arithmetic number, because the mean of its divisors is an integer number (32696955010).

Almost surely, 2^65393910019 is an apocalyptic number.

65393910019 is a deficient number, since it is larger than the sum of its proper divisors (1).

65393910019 is an equidigital number, since it uses as much as digits as its factorization.

65393910019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 196830, while the sum is 46.

The spelling of 65393910019 in words is "sixty-five billion, three hundred ninety-three million, nine hundred ten thousand, nineteen".