4421536423 has 4 divisors (see below), whose sum is σ = 4423184640. Its totient is φ = 4419888208.

The previous prime is 4421536393. The next prime is 4421536429. The reversal of 4421536423 is 3246351244.

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 4421536423 - 2²⁹ = 3884665511 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 (4421536429) 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, 820078 + ... + 825451.

It is an arithmetic number, because the mean of its divisors is an integer number (1105796160).

Almost surely, 2^4421536423 is an apocalyptic number.

4421536423 is a deficient number, since it is larger than the sum of its proper divisors (1648217).

4421536423 is a wasteful number, since it uses less digits than its factorization.

4421536423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648216.

The product of its digits is 69120, while the sum is 34.

The square root of 4421536423 is about 66494.6345429464. The cubic root of 4421536423 is about 1641.3117136906.

Adding to 4421536423 its reverse (3246351244), we get a palindrome (7667887667).

The spelling of 4421536423 in words is "four billion, four hundred twenty-one million, five hundred thirty-six thousand, four hundred twenty-three".