678895116359 has 2 divisors, whose sum is σ = 678895116360. Its totient is φ = 678895116358.

The previous prime is 678895116323. The next prime is 678895116391. The reversal of 678895116359 is 953611598876.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 678895116359 - 2¹² = 678895112263 is a prime.

It is a super-2 number, since 2×678895116359² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (678895116659) 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, 339447558179 + 339447558180.

It is an arithmetic number, because the mean of its divisors is an integer number (339447558180).

Almost surely, 2^678895116359 is an apocalyptic number.

678895116359 is a deficient number, since it is larger than the sum of its proper divisors (1).

678895116359 is an equidigital number, since it uses as much as digits as its factorization.

678895116359 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97977600, while the sum is 68.

The spelling of 678895116359 in words is "six hundred seventy-eight billion, eight hundred ninety-five million, one hundred sixteen thousand, three hundred fifty-nine".