12435400255 has 4 divisors (see below), whose sum is σ = 14922480312. Its totient is φ = 9948320200.

The previous prime is 12435400253. The next prime is 12435400267. The reversal of 12435400255 is 55200453421.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12435400255 - 2¹ = 12435400253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12435400253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1243540021 + ... + 1243540030.

It is an arithmetic number, because the mean of its divisors is an integer number (3730620078).

Almost surely, 2^12435400255 is an apocalyptic number.

12435400255 is a deficient number, since it is larger than the sum of its proper divisors (2487080057).

12435400255 is an equidigital number, since it uses as much as digits as its factorization.

12435400255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2487080056.

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 12435400255 its reverse (55200453421), we get a palindrome (67635853676).

The spelling of 12435400255 in words is "twelve billion, four hundred thirty-five million, four hundred thousand, two hundred fifty-five".