12443211494 has 32 divisors (see below), whose sum is σ = 21510225216. Its totient is φ = 5288215680.

The previous prime is 12443211493. The next prime is 12443211527. The reversal of 12443211494 is 49411234421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12443211491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 955064 + ... + 968004.

It is an arithmetic number, because the mean of its divisors is an integer number (672194538).

Almost surely, 2^12443211494 is an apocalyptic number.

12443211494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12443211494 is a deficient number, since it is larger than the sum of its proper divisors (9067013722).

12443211494 is a wasteful number, since it uses less digits than its factorization.

12443211494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13520.

The product of its digits is 27648, while the sum is 35.

The spelling of 12443211494 in words is "twelve billion, four hundred forty-three million, two hundred eleven thousand, four hundred ninety-four".