426235319689 has 9 divisors (see below), whose sum is σ = 428722079751. Its totient is φ = 423762912360.

The previous prime is 426235319659. The next prime is 426235319707. The reversal of 426235319689 is 986913532624.

The square root of 426235319689 is 652867.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4696772089 + 421538547600 = 68533^2 + 649260^2 .

It is not a de Polignac number, because 426235319689 - 2¹³ = 426235311497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (426235319639) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 118167124 + ... + 118170730.

It is an arithmetic number, because the mean of its divisors is an integer number (47635786639).

Almost surely, 2^426235319689 is an apocalyptic number.

426235319689 is the 652867-th square number.

426235319689 is the 326434-th centered octagonal number.

It is an amenable number.

426235319689 is a deficient number, since it is larger than the sum of its proper divisors (2486760062).

426235319689 is an frugal number, since it uses more digits than its factorization.

426235319689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7576 (or 3788 counting only the distinct ones).

The product of its digits is 16796160, while the sum is 58.

The spelling of 426235319689 in words is "four hundred twenty-six billion, two hundred thirty-five million, three hundred nineteen thousand, six hundred eighty-nine".