12426519168 has 144 divisors (see below), whose sum is σ = 41596931610. Its totient is φ = 3550417920.

The previous prime is 12426519139. The next prime is 12426519181. The reversal of 12426519168 is 86191562421.

12426519168 is a `hidden beast` number, since 12 + 426 + 51 + 9 + 168 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10814336064 + 1612183104 = 103992^2 + 40152^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 53623 + ... + 166518.

Almost surely, 2^12426519168 is an apocalyptic number.

12426519168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12426519168 is an abundant number, since it is smaller than the sum of its proper divisors (29170412442).

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

12426519168 is a wasteful number, since it uses less digits than its factorization.

12426519168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220175 (or 220153 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The spelling of 12426519168 in words is "twelve billion, four hundred twenty-six million, five hundred nineteen thousand, one hundred sixty-eight".