12420327465 has 96 divisors (see below), whose sum is σ = 26832798720. Its totient is φ = 5174627328.

The previous prime is 12420327463. The next prime is 12420327503. The reversal of 12420327465 is 56472302421.

12420327465 is a `hidden beast` number, since 124 + 203 + 274 + 65 = 666.

It is not a de Polignac number, because 12420327465 - 2¹ = 12420327463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12420327463) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 304309 + ... + 342701.

It is an arithmetic number, because the mean of its divisors is an integer number (279508320).

Almost surely, 2^12420327465 is an apocalyptic number.

12420327465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12420327465 is an abundant number, since it is smaller than the sum of its proper divisors (14412471255).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12420327465 is a wasteful number, since it uses less digits than its factorization.

12420327465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38503 (or 38500 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

Adding to 12420327465 its reverse (56472302421), we get a palindrome (68892629886).

The spelling of 12420327465 in words is "twelve billion, four hundred twenty million, three hundred twenty-seven thousand, four hundred sixty-five".