18570212417 has 8 divisors (see below), whose sum is σ = 19112496480. Its totient is φ = 18035512960.

The previous prime is 18570212393. The next prime is 18570212471. The reversal of 18570212417 is 71421207581.

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

It is a cyclic number.

It is not a de Polignac number, because 18570212417 - 2³² = 14275245121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18570212477) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1891184 + ... + 1900977.

It is an arithmetic number, because the mean of its divisors is an integer number (2389062060).

Almost surely, 2^18570212417 is an apocalyptic number.

It is an amenable number.

18570212417 is a deficient number, since it is larger than the sum of its proper divisors (542284063).

18570212417 is an equidigital number, since it uses as much as digits as its factorization.

18570212417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3792303.

The product of its (nonzero) digits is 31360, while the sum is 38.

Adding to 18570212417 its reverse (71421207581), we get a palindrome (89991419998).

The spelling of 18570212417 in words is "eighteen billion, five hundred seventy million, two hundred twelve thousand, four hundred seventeen".