12426230661 has 64 divisors (see below), whose sum is σ = 18521395200. Its totient is φ = 7363190016.

The previous prime is 12426230651. The next prime is 12426230669. The reversal of 12426230661 is 16603262421.

12426230661 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 12426230661 - 2⁷ = 12426230533 is a prime.

It is a super-2 number, since 2×12426230661² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12426230669) 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 63 ways as a sum of consecutive naturals, for example, 35810290 + ... + 35810636.

It is an arithmetic number, because the mean of its divisors is an integer number (289396800).

Almost surely, 2^12426230661 is an apocalyptic number.

It is an amenable number.

12426230661 is a deficient number, since it is larger than the sum of its proper divisors (6095164539).

12426230661 is a wasteful number, since it uses less digits than its factorization.

12426230661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698.

The product of its (nonzero) digits is 20736, while the sum is 33.

The spelling of 12426230661 in words is "twelve billion, four hundred twenty-six million, two hundred thirty thousand, six hundred sixty-one".