1232426361609 has 27 divisors (see below), whose sum is σ = 1792342737237. Its totient is φ = 816037975584.

The previous prime is 1232426361499. The next prime is 1232426361643. The reversal of 1232426361609 is 9061636242321.

The square root of 1232426361609 is 1110147.

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

1232426361609 is a `hidden beast` number, since 1 + 2 + 3 + 2 + 4 + 2 + 6 + 36 + 1 + 609 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 345740472009 + 886685889600 = 587997^2 + 941640^2 .

It is not a de Polignac number, because 1232426361609 - 2²¹ = 1232424264457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1232426361689) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 522878059 + ... + 522880415.

Almost surely, 2^{1232426361609} is an apocalyptic number.

1232426361609 is the 1110147-th square number.

1232426361609 is the 555074-th centered octagonal number.

It is an amenable number.

1232426361609 is a deficient number, since it is larger than the sum of its proper divisors (559916375628).

1232426361609 is an frugal number, since it uses more digits than its factorization.

1232426361609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5034 (or 2517 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The spelling of 1232426361609 in words is "one trillion, two hundred thirty-two billion, four hundred twenty-six million, three hundred sixty-one thousand, six hundred nine".