43653868700816 has 20 divisors (see below), whose sum is σ = 92268404299824. Its totient is φ = 19842667591200.

The previous prime is 43653868700809. The next prime is 43653868700903. The reversal of 43653868700816 is 61800786835634.

It is a happy number.

43653868700816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124016672270 + ... + 124016672621.

Almost surely, 2^{43653868700816} is an apocalyptic number.

It is an amenable number.

43653868700816 is an abundant number, since it is smaller than the sum of its proper divisors (48614535599008).

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

43653868700816 is a wasteful number, since it uses less digits than its factorization.

43653868700816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248033344910 (or 248033344904 counting only the distinct ones).

The product of its (nonzero) digits is 139345920, while the sum is 65.

The spelling of 43653868700816 in words is "forty-three trillion, six hundred fifty-three billion, eight hundred sixty-eight million, seven hundred thousand, eight hundred sixteen".