43491835361 has 16 divisors (see below), whose sum is σ = 48364377600. Its totient is φ = 38838303360.

The previous prime is 43491835339. The next prime is 43491835397. The reversal of 43491835361 is 16353819434.

It is a cyclic number.

It is not a de Polignac number, because 43491835361 - 2¹⁸ = 43491573217 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43491835561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1313141 + ... + 1345853.

It is an arithmetic number, because the mean of its divisors is an integer number (3022773600).

Almost surely, 2^43491835361 is an apocalyptic number.

It is an amenable number.

43491835361 is a deficient number, since it is larger than the sum of its proper divisors (4872542239).

43491835361 is a wasteful number, since it uses less digits than its factorization.

43491835361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36056.

The product of its digits is 933120, while the sum is 47.

The spelling of 43491835361 in words is "forty-three billion, four hundred ninety-one million, eight hundred thirty-five thousand, three hundred sixty-one".