12403256746 has 16 divisors (see below), whose sum is σ = 19728597384. Its totient is φ = 5828143104.

The previous prime is 12403256741. The next prime is 12403256773. The reversal of 12403256746 is 64765230421.

It can be written as a sum of positive squares in 4 ways, for example, as 11016811521 + 1386445225 = 104961^2 + 37235^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12403256699 and 12403256708.

It is not an unprimeable number, because it can be changed into a prime (12403256741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248145 + ... + 293908.

Almost surely, 2^12403256746 is an apocalyptic number.

12403256746 is a deficient number, since it is larger than the sum of its proper divisors (7325340638).

12403256746 is a wasteful number, since it uses less digits than its factorization.

12403256746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542745.

The product of its (nonzero) digits is 241920, while the sum is 40.

The spelling of 12403256746 in words is "twelve billion, four hundred three million, two hundred fifty-six thousand, seven hundred forty-six".