12424351515 has 32 divisors (see below), whose sum is σ = 20031494400. Its totient is φ = 6575633280.

The previous prime is 12424351507. The next prime is 12424351517. The reversal of 12424351515 is 51515342421.

12424351515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12424351515 - 2³ = 12424351507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12424351517) 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 31 ways as a sum of consecutive naturals, for example, 1362120 + ... + 1371210.

It is an arithmetic number, because the mean of its divisors is an integer number (625984200).

Almost surely, 2^12424351515 is an apocalyptic number.

12424351515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12424351515 is a deficient number, since it is larger than the sum of its proper divisors (7607142885).

12424351515 is a wasteful number, since it uses less digits than its factorization.

12424351515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9787.

The product of its digits is 24000, while the sum is 33.

Adding to 12424351515 its reverse (51515342421), we get a palindrome (63939693936).

The spelling of 12424351515 in words is "twelve billion, four hundred twenty-four million, three hundred fifty-one thousand, five hundred fifteen".