168426683407 has 2 divisors, whose sum is σ = 168426683408. Its totient is φ = 168426683406.

The previous prime is 168426683333. The next prime is 168426683419. The reversal of 168426683407 is 704386624861.

It is a happy number.

168426683407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (704386624861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 168426683407 - 2¹¹ = 168426681359 is a prime.

It is a super-3 number, since 3×168426683407³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168426683497) 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, 84213341703 + 84213341704.

It is an arithmetic number, because the mean of its divisors is an integer number (84213341704).

Almost surely, 2^168426683407 is an apocalyptic number.

168426683407 is a deficient number, since it is larger than the sum of its proper divisors (1).

168426683407 is an equidigital number, since it uses as much as digits as its factorization.

168426683407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9289728, while the sum is 55.

The spelling of 168426683407 in words is "one hundred sixty-eight billion, four hundred twenty-six million, six hundred eighty-three thousand, four hundred seven".