43421365461 has 8 divisors (see below), whose sum is σ = 57911857120. Its totient is φ = 28939225392.

The previous prime is 43421365457. The next prime is 43421365469. The reversal of 43421365461 is 16456312434.

43421365461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 43421365461 - 2² = 43421365457 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43421365469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2075755 + ... + 2096568.

It is an arithmetic number, because the mean of its divisors is an integer number (7238982140).

Almost surely, 2^43421365461 is an apocalyptic number.

It is an amenable number.

43421365461 is a deficient number, since it is larger than the sum of its proper divisors (14490491659).

43421365461 is a wasteful number, since it uses less digits than its factorization.

43421365461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4175795.

The product of its digits is 207360, while the sum is 39.

Adding to 43421365461 its reverse (16456312434), we get a palindrome (59877677895).

The spelling of 43421365461 in words is "forty-three billion, four hundred twenty-one million, three hundred sixty-five thousand, four hundred sixty-one".