8426790907169 has 2 divisors, whose sum is σ = 8426790907170. Its totient is φ = 8426790907168.

The previous prime is 8426790907151. The next prime is 8426790907253. The reversal of 8426790907169 is 9617090976248.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6405454810000 + 2021336097169 = 2530900^2 + 1421737^2 .

It is a cyclic number.

It is not a de Polignac number, because 8426790907169 - 2²⁰ = 8426789858593 is a prime.

It is a super-2 number, since 2×8426790907169² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8426790907099 and 8426790907108.

It is not a weakly prime, because it can be changed into another prime (8426790907109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4213395453584 + 4213395453585.

It is an arithmetic number, because the mean of its divisors is an integer number (4213395453585).

Almost surely, 2^{8426790907169} is an apocalyptic number.

It is an amenable number.

8426790907169 is a deficient number, since it is larger than the sum of its proper divisors (1).

8426790907169 is an equidigital number, since it uses as much as digits as its factorization.

8426790907169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82301184, while the sum is 68.

The spelling of 8426790907169 in words is "eight trillion, four hundred twenty-six billion, seven hundred ninety million, nine hundred seven thousand, one hundred sixty-nine".