12565433463 has 8 divisors (see below), whose sum is σ = 18276994176. Its totient is φ = 7615414200.

The previous prime is 12565433449. The next prime is 12565433479. The reversal of 12565433463 is 36433456521.

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

It is not a de Polignac number, because 12565433463 - 2⁹ = 12565432951 is a prime.

It is a super-2 number, since 2×12565433463² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12565433483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190385323 + ... + 190385388.

It is an arithmetic number, because the mean of its divisors is an integer number (2284624272).

Almost surely, 2^12565433463 is an apocalyptic number.

12565433463 is a deficient number, since it is larger than the sum of its proper divisors (5711560713).

12565433463 is a wasteful number, since it uses less digits than its factorization.

12565433463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380770725.

The product of its digits is 777600, while the sum is 42.

Adding to 12565433463 its reverse (36433456521), we get a palindrome (48998889984).

The spelling of 12565433463 in words is "twelve billion, five hundred sixty-five million, four hundred thirty-three thousand, four hundred sixty-three".