12475408217 has 4 divisors (see below), whose sum is σ = 12475656576. Its totient is φ = 12475159860.

The previous prime is 12475408201. The next prime is 12475408249. The reversal of 12475408217 is 71280457421.

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.

It is a cyclic number.

It is not a de Polignac number, because 12475408217 - 2⁴ = 12475408201 is a prime.

It is a super-2 number, since 2×12475408217² (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 (12475408277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19313 + ... + 159134.

It is an arithmetic number, because the mean of its divisors is an integer number (3118914144).

Almost surely, 2^12475408217 is an apocalyptic number.

It is an amenable number.

12475408217 is a deficient number, since it is larger than the sum of its proper divisors (248359).

12475408217 is an equidigital number, since it uses as much as digits as its factorization.

12475408217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248358.

The product of its (nonzero) digits is 125440, while the sum is 41.

The spelling of 12475408217 in words is "twelve billion, four hundred seventy-five million, four hundred eight thousand, two hundred seventeen".