12426236064 has 72 divisors (see below), whose sum is σ = 38549583072. Its totient is φ = 3765525120.

The previous prime is 12426236057. The next prime is 12426236077. The reversal of 12426236064 is 46063262421.

12426236064 is a `hidden beast` number, since 1 + 2 + 4 + 26 + 23 + 606 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×12426236064² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1958044 + ... + 1964379.

It is an arithmetic number, because the mean of its divisors is an integer number (535410876).

Almost surely, 2^12426236064 is an apocalyptic number.

It is an amenable number.

12426236064 is an abundant number, since it is smaller than the sum of its proper divisors (26123347008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12426236064 is a wasteful number, since it uses less digits than its factorization.

12426236064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3922450 (or 3922439 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

Adding to 12426236064 its reverse (46063262421), we get a palindrome (58489498485).

The spelling of 12426236064 in words is "twelve billion, four hundred twenty-six million, two hundred thirty-six thousand, sixty-four".