65319917903 has 2 divisors, whose sum is σ = 65319917904. Its totient is φ = 65319917902.

The previous prime is 65319917899. The next prime is 65319917917. The reversal of 65319917903 is 30971991356.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65319917903 - 2² = 65319917899 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65319917303) 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, 32659958951 + 32659958952.

It is an arithmetic number, because the mean of its divisors is an integer number (32659958952).

Almost surely, 2^65319917903 is an apocalyptic number.

65319917903 is a deficient number, since it is larger than the sum of its proper divisors (1).

65319917903 is an equidigital number, since it uses as much as digits as its factorization.

65319917903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1377810, while the sum is 53.

The spelling of 65319917903 in words is "sixty-five billion, three hundred nineteen million, nine hundred seventeen thousand, nine hundred three".