4254421551443 has 4 divisors (see below), whose sum is σ = 4862196058800. Its totient is φ = 3646647044088.

The previous prime is 4254421551431. The next prime is 4254421551461. The reversal of 4254421551443 is 3441551244524.

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

It is a cyclic number.

It is not a de Polignac number, because 4254421551443 - 2¹⁰ = 4254421550419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4254421551394 and 4254421551403.

It is not an unprimeable number, because it can be changed into a prime (4254421551463) 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, 303887253668 + ... + 303887253681.

It is an arithmetic number, because the mean of its divisors is an integer number (1215549014700).

Almost surely, 2^{4254421551443} is an apocalyptic number.

4254421551443 is a deficient number, since it is larger than the sum of its proper divisors (607774507357).

4254421551443 is an equidigital number, since it uses as much as digits as its factorization.

4254421551443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607774507356.

The product of its digits is 1536000, while the sum is 44.

Adding to 4254421551443 its reverse (3441551244524), we get a palindrome (7695972795967).

The spelling of 4254421551443 in words is "four trillion, two hundred fifty-four billion, four hundred twenty-one million, five hundred fifty-one thousand, four hundred forty-three".