424239948523 has 4 divisors (see below), whose sum is σ = 429351273288. Its totient is φ = 419128623760.

The previous prime is 424239948511. The next prime is 424239948527. The reversal of 424239948523 is 325849932424.

It is a happy number.

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 424239948523 - 2²¹ = 424237851371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (424239948527) 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, 2555662258 + ... + 2555662423.

It is an arithmetic number, because the mean of its divisors is an integer number (107337818322).

Almost surely, 2^424239948523 is an apocalyptic number.

424239948523 is a deficient number, since it is larger than the sum of its proper divisors (5111324765).

424239948523 is an equidigital number, since it uses as much as digits as its factorization.

424239948523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5111324764.

The product of its digits is 14929920, while the sum is 55.

The spelling of 424239948523 in words is "four hundred twenty-four billion, two hundred thirty-nine million, nine hundred forty-eight thousand, five hundred twenty-three".