426810065549 has 12 divisors (see below), whose sum is σ = 509912082684. Its totient is φ = 355949705664.

The previous prime is 426810065501. The next prime is 426810065551. The reversal of 426810065549 is 945560018624.

It can be written as a sum of positive squares in 2 ways, for example, as 263278793449 + 163531272100 = 513107^2 + 404390^2 .

It is not a de Polignac number, because 426810065549 - 2³⁶ = 358090588813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 426810065497 and 426810065506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426810065569) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117706424 + ... + 117710049.

It is an arithmetic number, because the mean of its divisors is an integer number (42492673557).

Almost surely, 2^426810065549 is an apocalyptic number.

426810065549 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

426810065549 is a deficient number, since it is larger than the sum of its proper divisors (83102017135).

426810065549 is a wasteful number, since it uses less digits than its factorization.

426810065549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235416524 (or 235416517 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 50.

The spelling of 426810065549 in words is "four hundred twenty-six billion, eight hundred ten million, sixty-five thousand, five hundred forty-nine".