43490867201 has 4 divisors (see below), whose sum is σ = 43767879252. Its totient is φ = 43213855152.

The previous prime is 43490867197. The next prime is 43490867213. The reversal of 43490867201 is 10276809434.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28398990400 + 15091876801 = 168520^2 + 122849^2 .

It is a cyclic number.

It is not a de Polignac number, because 43490867201 - 2² = 43490867197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43490866201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138505790 + ... + 138506103.

It is an arithmetic number, because the mean of its divisors is an integer number (10941969813).

Almost surely, 2^43490867201 is an apocalyptic number.

It is an amenable number.

43490867201 is a deficient number, since it is larger than the sum of its proper divisors (277012051).

43490867201 is a wasteful number, since it uses less digits than its factorization.

43490867201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277012050.

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 43490867201 in words is "forty-three billion, four hundred ninety million, eight hundred sixty-seven thousand, two hundred one".