4520636423 has 4 divisors (see below), whose sum is σ = 4525936968. Its totient is φ = 4515335880.

The previous prime is 4520636383. The next prime is 4520636429. The reversal of 4520636423 is 3246360254.

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 4520636423 - 2⁶ = 4520636359 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 (4520636429) 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, 2648993 + ... + 2650698.

It is an arithmetic number, because the mean of its divisors is an integer number (1131484242).

Almost surely, 2^4520636423 is an apocalyptic number.

4520636423 is a deficient number, since it is larger than the sum of its proper divisors (5300545).

4520636423 is an equidigital number, since it uses as much as digits as its factorization.

4520636423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5300544.

The product of its (nonzero) digits is 103680, while the sum is 35.

The square root of 4520636423 is about 67235.6781998962. The cubic root of 4520636423 is about 1653.4834789510.

Adding to 4520636423 its reverse (3246360254), we get a palindrome (7766996677).

The spelling of 4520636423 in words is "four billion, five hundred twenty million, six hundred thirty-six thousand, four hundred twenty-three".