43818407368 has 8 divisors (see below), whose sum is σ = 82159513830. Its totient is φ = 21909203680.

The previous prime is 43818407287. The next prime is 43818407371. The reversal of 43818407368 is 86370481834.

It can be written as a sum of positive squares in only one way, i.e., 40456495044 + 3361912324 = 201138^2 + 57982^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2738650453 + ... + 2738650468.

Almost surely, 2^43818407368 is an apocalyptic number.

It is an amenable number.

43818407368 is a deficient number, since it is larger than the sum of its proper divisors (38341106462).

43818407368 is a wasteful number, since it uses less digits than its factorization.

43818407368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5477300927 (or 5477300923 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 52.

The spelling of 43818407368 in words is "forty-three billion, eight hundred eighteen million, four hundred seven thousand, three hundred sixty-eight".