12426254505 has 96 divisors (see below), whose sum is σ = 27038269440. Its totient is φ = 5147556480.

The previous prime is 12426254479. The next prime is 12426254513. The reversal of 12426254505 is 50545262421.

12426254505 is a `hidden beast` number, since 1 + 2 + 42 + 62 + 54 + 505 = 666.

It is not a de Polignac number, because 12426254505 - 2⁸ = 12426254249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12426254505.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 92520 + ... + 182790.

It is an arithmetic number, because the mean of its divisors is an integer number (281648640).

Almost surely, 2^12426254505 is an apocalyptic number.

12426254505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12426254505 is an abundant number, since it is smaller than the sum of its proper divisors (14612014935).

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

12426254505 is a wasteful number, since it uses less digits than its factorization.

12426254505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90331 (or 90328 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The spelling of 12426254505 in words is "twelve billion, four hundred twenty-six million, two hundred fifty-four thousand, five hundred five".