78283229430617 has 2 divisors, whose sum is σ = 78283229430618. Its totient is φ = 78283229430616.

The previous prime is 78283229430607. The next prime is 78283229430649. The reversal of 78283229430617 is 71603492238287.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78166481474761 + 116747955856 = 8841181^2 + 341684^2 .

It is a cyclic number.

It is not a de Polignac number, because 78283229430617 - 2¹⁰ = 78283229429593 is a prime.

It is a super-2 number, since 2×78283229430617² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78283229430617.

It is not a weakly prime, because it can be changed into another prime (78283229430607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39141614715308 + 39141614715309.

It is an arithmetic number, because the mean of its divisors is an integer number (39141614715309).

Almost surely, 2^{78283229430617} is an apocalyptic number.

It is an amenable number.

78283229430617 is a deficient number, since it is larger than the sum of its proper divisors (1).

78283229430617 is an equidigital number, since it uses as much as digits as its factorization.

78283229430617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48771072, while the sum is 62.

The spelling of 78283229430617 in words is "seventy-eight trillion, two hundred eighty-three billion, two hundred twenty-nine million, four hundred thirty thousand, six hundred seventeen".