432634135313621 has 2 divisors, whose sum is σ = 432634135313622. Its totient is φ = 432634135313620.

The previous prime is 432634135313603. The next prime is 432634135313701. The reversal of 432634135313621 is 126313531436234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 222171366511396 + 210462768802225 = 14905414^2 + 14507335^2 .

It is a cyclic number.

It is not a de Polignac number, because 432634135313621 - 2²⁶ = 432634068204757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (432634135313321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216317067656810 + 216317067656811.

It is an arithmetic number, because the mean of its divisors is an integer number (216317067656811).

Almost surely, 2^{432634135313621} is an apocalyptic number.

It is an amenable number.

432634135313621 is a deficient number, since it is larger than the sum of its proper divisors (1).

432634135313621 is an equidigital number, since it uses as much as digits as its factorization.

432634135313621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2799360, while the sum is 47.

Adding to 432634135313621 its reverse (126313531436234), we get a palindrome (558947666749855).

The spelling of 432634135313621 in words is "four hundred thirty-two trillion, six hundred thirty-four billion, one hundred thirty-five million, three hundred thirteen thousand, six hundred twenty-one".