43686790443 has 24 divisors (see below), whose sum is σ = 63728560896. Its totient is φ = 28837134000.

The previous prime is 43686790429. The next prime is 43686790447. The reversal of 43686790443 is 34409768634.

43686790443 is a `hidden beast` number, since 4 + 36 + 86 + 7 + 90 + 443 = 666.

It is not a de Polignac number, because 43686790443 - 2¹⁸ = 43686528299 is a prime.

It is a super-3 number, since 3×43686790443³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 43686790443.

It is not an unprimeable number, because it can be changed into a prime (43686790447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 364858 + ... + 469568.

It is an arithmetic number, because the mean of its divisors is an integer number (2655356704).

Almost surely, 2^43686790443 is an apocalyptic number.

43686790443 is a deficient number, since it is larger than the sum of its proper divisors (20041770453).

43686790443 is a wasteful number, since it uses less digits than its factorization.

43686790443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105175 (or 105172 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 54.

The spelling of 43686790443 in words is "forty-three billion, six hundred eighty-six million, seven hundred ninety thousand, four hundred forty-three".