20424894333 has 4 divisors (see below), whose sum is σ = 27233192448. Its totient is φ = 13616596220.

The previous prime is 20424894319. The next prime is 20424894361. The reversal of 20424894333 is 33349842402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20424894333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20424894733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3404149053 + ... + 3404149058.

It is an arithmetic number, because the mean of its divisors is an integer number (6808298112).

Almost surely, 2^20424894333 is an apocalyptic number.

It is an amenable number.

20424894333 is a deficient number, since it is larger than the sum of its proper divisors (6808298115).

20424894333 is an equidigital number, since it uses as much as digits as its factorization.

20424894333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6808298114.

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 20424894333 in words is "twenty billion, four hundred twenty-four million, eight hundred ninety-four thousand, three hundred thirty-three".