4543468421 has 4 divisors (see below), whose sum is σ = 4548054144. Its totient is φ = 4538882700.

The previous prime is 4543468361. The next prime is 4543468439. The reversal of 4543468421 is 1248643454.

It is a happy number.

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 4543468421 - 2³⁰ = 3469726597 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 (4543468621) 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, 2291375 + ... + 2293356.

It is an arithmetic number, because the mean of its divisors is an integer number (1137013536).

Almost surely, 2^4543468421 is an apocalyptic number.

It is an amenable number.

4543468421 is a deficient number, since it is larger than the sum of its proper divisors (4585723).

4543468421 is an equidigital number, since it uses as much as digits as its factorization.

4543468421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4585722.

The product of its digits is 368640, while the sum is 41.

The square root of 4543468421 is about 67405.2551437942. The cubic root of 4543468421 is about 1656.2625088772.

The spelling of 4543468421 in words is "four billion, five hundred forty-three million, four hundred sixty-eight thousand, four hundred twenty-one".