13821071458 has 8 divisors (see below), whose sum is σ = 21015602028. Its totient is φ = 6815870784.

The previous prime is 13821071441. The next prime is 13821071461. The reversal of 13821071458 is 85417012831.

13821071458 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12502146969 + 1318924489 = 111813^2 + 36317^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13821071458.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47332291 + ... + 47332582.

Almost surely, 2^13821071458 is an apocalyptic number.

13821071458 is a deficient number, since it is larger than the sum of its proper divisors (7194530570).

13821071458 is an equidigital number, since it uses as much as digits as its factorization.

13821071458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94664948.

The product of its (nonzero) digits is 53760, while the sum is 40.

The spelling of 13821071458 in words is "thirteen billion, eight hundred twenty-one million, seventy-one thousand, four hundred fifty-eight".