78328283659 has 2 divisors, whose sum is σ = 78328283660. Its totient is φ = 78328283658.

The previous prime is 78328283641. The next prime is 78328283681. The reversal of 78328283659 is 95638282387.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78328283659 - 2⁹ = 78328283147 is a prime.

It is a super-2 number, since 2×78328283659² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78328283597 and 78328283606.

It is not a weakly prime, because it can be changed into another prime (78328287659) 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, 39164141829 + 39164141830.

It is an arithmetic number, because the mean of its divisors is an integer number (39164141830).

Almost surely, 2^78328283659 is an apocalyptic number.

78328283659 is a deficient number, since it is larger than the sum of its proper divisors (1).

78328283659 is an equidigital number, since it uses as much as digits as its factorization.

78328283659 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34836480, while the sum is 61.

The spelling of 78328283659 in words is "seventy-eight billion, three hundred twenty-eight million, two hundred eighty-three thousand, six hundred fifty-nine".