12443626554 has 8 divisors (see below), whose sum is σ = 24887253120. Its totient is φ = 4147875516.

The previous prime is 12443626553. The next prime is 12443626607. The reversal of 12443626554 is 45562634421.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

12443626554 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (12443626553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1036968874 + ... + 1036968885.

It is an arithmetic number, because the mean of its divisors is an integer number (3110906640).

Almost surely, 2^12443626554 is an apocalyptic number.

12443626554 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12443626554 is a wasteful number, since it uses less digits than its factorization.

12443626554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2073937764.

The product of its digits is 691200, while the sum is 42.

The spelling of 12443626554 in words is "twelve billion, four hundred forty-three million, six hundred twenty-six thousand, five hundred fifty-four".