12423578541998 has 32 divisors (see below), whose sum is σ = 21128557363200. Its totient is φ = 5431286380896.

The previous prime is 12423578541991. The next prime is 12423578542013. The reversal of 12423578541998 is 89914587532421.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12423578541991) 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, 987683 + ... + 5081601.

It is an arithmetic number, because the mean of its divisors is an integer number (660267417600).

Almost surely, 2^{12423578541998} is an apocalyptic number.

12423578541998 is a deficient number, since it is larger than the sum of its proper divisors (8704978821202).

12423578541998 is a wasteful number, since it uses less digits than its factorization.

12423578541998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4100096.

The product of its digits is 174182400, while the sum is 68.

The spelling of 12423578541998 in words is "twelve trillion, four hundred twenty-three billion, five hundred seventy-eight million, five hundred forty-one thousand, nine hundred ninety-eight".