135421343120463 has 32 divisors (see below), whose sum is σ = 186540636353280. Its totient is φ = 87332655997440.

The previous prime is 135421343120447. The next prime is 135421343120473. The reversal of 135421343120463 is 364021343124531.

It is not a de Polignac number, because 135421343120463 - 2⁴ = 135421343120447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135421343120473) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28790503 + ... + 33162263.

It is an arithmetic number, because the mean of its divisors is an integer number (5829394886040).

Almost surely, 2^{135421343120463} is an apocalyptic number.

135421343120463 is a deficient number, since it is larger than the sum of its proper divisors (51119293232817).

135421343120463 is a wasteful number, since it uses less digits than its factorization.

135421343120463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4374119.

The product of its (nonzero) digits is 622080, while the sum is 42.

Adding to 135421343120463 its reverse (364021343124531), we get a palindrome (499442686244994).

The spelling of 135421343120463 in words is "one hundred thirty-five trillion, four hundred twenty-one billion, three hundred forty-three million, one hundred twenty thousand, four hundred sixty-three".