12481945826 has 32 divisors (see below), whose sum is σ = 21624176640. Its totient is φ = 5292994896.

The previous prime is 12481945813. The next prime is 12481945829. The reversal of 12481945826 is 62854918421.

It is not an unprimeable number, because it can be changed into a prime (12481945829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 664601 + ... + 683123.

It is an arithmetic number, because the mean of its divisors is an integer number (675755520).

Almost surely, 2^12481945826 is an apocalyptic number.

12481945826 is a deficient number, since it is larger than the sum of its proper divisors (9142230814).

12481945826 is a wasteful number, since it uses less digits than its factorization.

12481945826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19038.

The product of its digits is 1105920, while the sum is 50.

The spelling of 12481945826 in words is "twelve billion, four hundred eighty-one million, nine hundred forty-five thousand, eight hundred twenty-six".