43614434561 has 4 divisors (see below), whose sum is σ = 43858090800. Its totient is φ = 43370778324.

The previous prime is 43614434557. The next prime is 43614434623. The reversal of 43614434561 is 16543441634.

43614434561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43614434561 - 2² = 43614434557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43614434531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121827851 + ... + 121828208.

It is an arithmetic number, because the mean of its divisors is an integer number (10964522700).

Almost surely, 2^43614434561 is an apocalyptic number.

It is an amenable number.

43614434561 is a deficient number, since it is larger than the sum of its proper divisors (243656239).

43614434561 is a wasteful number, since it uses less digits than its factorization.

43614434561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243656238.

The product of its digits is 414720, while the sum is 41.

The spelling of 43614434561 in words is "forty-three billion, six hundred fourteen million, four hundred thirty-four thousand, five hundred sixty-one".