42644216654 has 16 divisors (see below), whose sum is σ = 69232984800. Its totient is φ = 19583039520.

The previous prime is 42644216651. The next prime is 42644216701. The reversal of 42644216654 is 45661244624.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42644216651) 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, 4115837 + ... + 4126184.

It is an arithmetic number, because the mean of its divisors is an integer number (4327061550).

Almost surely, 2^42644216654 is an apocalyptic number.

42644216654 is a deficient number, since it is larger than the sum of its proper divisors (26588768146).

42644216654 is a wasteful number, since it uses less digits than its factorization.

42644216654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8242235.

The product of its digits is 1105920, while the sum is 44.

The spelling of 42644216654 in words is "forty-two billion, six hundred forty-four million, two hundred sixteen thousand, six hundred fifty-four".