12504554444 has 24 divisors (see below), whose sum is σ = 22593707136. Its totient is φ = 6049296000.

The previous prime is 12504554407. The next prime is 12504554449. The reversal of 12504554444 is 44445540521.

It is a junction number, because it is equal to n+sod(n) for n = 12504554398 and 12504554407.

It is not an unprimeable number, because it can be changed into a prime (12504554449) 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, 840914 + ... + 855654.

It is an arithmetic number, because the mean of its divisors is an integer number (941404464).

Almost surely, 2^12504554444 is an apocalyptic number.

It is an amenable number.

12504554444 is a deficient number, since it is larger than the sum of its proper divisors (10089152692).

12504554444 is a wasteful number, since it uses less digits than its factorization.

12504554444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21617 (or 21615 counting only the distinct ones).

The product of its (nonzero) digits is 256000, while the sum is 38.

The spelling of 12504554444 in words is "twelve billion, five hundred four million, five hundred fifty-four thousand, four hundred forty-four".