426868361613 has 10 divisors (see below), whose sum is σ = 637667552654. Its totient is φ = 284578907688.

The previous prime is 426868361611. The next prime is 426868361669. The reversal of 426868361613 is 316163868624.

426868361613 is a `hidden beast` number, since 4 + 2 + 6 + 8 + 6 + 8 + 3 + 616 + 13 = 666.

It can be written as a sum of positive squares in only one way, i.e., 377778641769 + 49089719844 = 614637^2 + 221562^2 .

It is not a de Polignac number, because 426868361613 - 2¹ = 426868361611 is a prime.

It is a super-3 number, since 3×426868361613³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 426868361613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426868361611) 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 in 9 ways as a sum of consecutive naturals, for example, 2634989806 + ... + 2634989967.

Almost surely, 2^426868361613 is an apocalyptic number.

It is an amenable number.

426868361613 is a deficient number, since it is larger than the sum of its proper divisors (210799191041).

426868361613 is an equidigital number, since it uses as much as digits as its factorization.

426868361613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5269979785 (or 5269979776 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 54.

The spelling of 426868361613 in words is "four hundred twenty-six billion, eight hundred sixty-eight million, three hundred sixty-one thousand, six hundred thirteen".