12928132408444 has 48 divisors (see below), whose sum is σ = 25368332220000. Its totient is φ = 5713022914560.

The previous prime is 12928132408427. The next prime is 12928132408501. The reversal of 12928132408444 is 44480423182921.

It is a super-2 number, since 2×12928132408444² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12928132408391 and 12928132408400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1145617 + ... + 5212360.

It is an arithmetic number, because the mean of its divisors is an integer number (528506921250).

Almost surely, 2^{12928132408444} is an apocalyptic number.

It is an amenable number.

12928132408444 is a deficient number, since it is larger than the sum of its proper divisors (12440199811556).

12928132408444 is a wasteful number, since it uses less digits than its factorization.

12928132408444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6359278 (or 6359276 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 52.

The spelling of 12928132408444 in words is "twelve trillion, nine hundred twenty-eight billion, one hundred thirty-two million, four hundred eight thousand, four hundred forty-four".