43641105456 has 40 divisors (see below), whose sum is σ = 121411795120. Its totient is φ = 13428032256.

The previous prime is 43641105421. The next prime is 43641105479. The reversal of 43641105456 is 65450114634.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34968211 + ... + 34969458.

It is an arithmetic number, because the mean of its divisors is an integer number (3035294878).

Almost surely, 2^43641105456 is an apocalyptic number.

It is an amenable number.

43641105456 is an abundant number, since it is smaller than the sum of its proper divisors (77770689664).

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

43641105456 is a wasteful number, since it uses less digits than its factorization.

43641105456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69937693 (or 69937687 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 43641105456 in words is "forty-three billion, six hundred forty-one million, one hundred five thousand, four hundred fifty-six".