13258408217 has 4 divisors (see below), whose sum is σ = 13305258000. Its totient is φ = 13211558436.

The previous prime is 13258408211. The next prime is 13258408223. The reversal of 13258408217 is 71280485231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71280485231 = 1637 ⋅43543363.

It is an interprime number because it is at equal distance from previous prime (13258408211) and next prime (13258408223).

It is a cyclic number.

It is not a de Polignac number, because 13258408217 - 2²² = 13254213913 is a prime.

It is a super-2 number, since 2×13258408217² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13258408211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23424467 + ... + 23425032.

It is an arithmetic number, because the mean of its divisors is an integer number (3326314500).

Almost surely, 2^13258408217 is an apocalyptic number.

It is an amenable number.

13258408217 is a deficient number, since it is larger than the sum of its proper divisors (46849783).

13258408217 is an equidigital number, since it uses as much as digits as its factorization.

13258408217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46849782.

The product of its (nonzero) digits is 107520, while the sum is 41.

The spelling of 13258408217 in words is "thirteen billion, two hundred fifty-eight million, four hundred eight thousand, two hundred seventeen".