4356423823 has 4 divisors (see below), whose sum is σ = 4378315600. Its totient is φ = 4334532048.

The previous prime is 4356423793. The next prime is 4356423833. The reversal of 4356423823 is 3283246534.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3283246534 = 2 ⋅1641623267.

It is a cyclic number.

It is not a de Polignac number, because 4356423823 - 2⁹ = 4356423311 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 (4356423833) 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, 10945590 + ... + 10945987.

It is an arithmetic number, because the mean of its divisors is an integer number (1094578900).

Almost surely, 2^4356423823 is an apocalyptic number.

4356423823 is a deficient number, since it is larger than the sum of its proper divisors (21891777).

4356423823 is a wasteful number, since it uses less digits than its factorization.

4356423823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21891776.

The product of its digits is 414720, while the sum is 40.

The square root of 4356423823 is about 66003.2107022075. The cubic root of 4356423823 is about 1633.2150556260.

The spelling of 4356423823 in words is "four billion, three hundred fifty-six million, four hundred twenty-three thousand, eight hundred twenty-three".