424786324861 has 2 divisors, whose sum is σ = 424786324862. Its totient is φ = 424786324860.

The previous prime is 424786324813. The next prime is 424786324889. The reversal of 424786324861 is 168423687424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 395664902361 + 29121422500 = 629019^2 + 170650^2 .

It is a cyclic number.

It is not a de Polignac number, because 424786324861 - 2¹¹ = 424786322813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424786624861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212393162430 + 212393162431.

It is an arithmetic number, because the mean of its divisors is an integer number (212393162431).

Almost surely, 2^424786324861 is an apocalyptic number.

It is an amenable number.

424786324861 is a deficient number, since it is larger than the sum of its proper divisors (1).

424786324861 is an equidigital number, since it uses as much as digits as its factorization.

424786324861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12386304, while the sum is 55.

It can be divided in two parts, 4247863 and 24861, that added together give a palindrome (4272724).

The spelling of 424786324861 in words is "four hundred twenty-four billion, seven hundred eighty-six million, three hundred twenty-four thousand, eight hundred sixty-one".