12426423501 has 16 divisors (see below), whose sum is σ = 17207982080. Its totient is φ = 7967853360.

The previous prime is 12426423497. The next prime is 12426423517. The reversal of 12426423501 is 10532462421.

12426423501 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 12426423501 - 2² = 12426423497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12426423551) 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 15 ways as a sum of consecutive naturals, for example, 394711 + ... + 425028.

It is an arithmetic number, because the mean of its divisors is an integer number (1075498880).

Almost surely, 2^12426423501 is an apocalyptic number.

It is an amenable number.

12426423501 is a deficient number, since it is larger than the sum of its proper divisors (4781558579).

12426423501 is a wasteful number, since it uses less digits than its factorization.

12426423501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819936.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 12426423501 its reverse (10532462421), we get a palindrome (22958885922).

The spelling of 12426423501 in words is "twelve billion, four hundred twenty-six million, four hundred twenty-three thousand, five hundred one".