20005424049 has 8 divisors (see below), whose sum is σ = 28725737152. Its totient is φ = 12311030160.

The previous prime is 20005423979. The next prime is 20005424051. The reversal of 20005424049 is 94042450002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20005424049 - 2¹¹ = 20005422001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20005424249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256479757 + ... + 256479834.

It is an arithmetic number, because the mean of its divisors is an integer number (3590717144).

Almost surely, 2^20005424049 is an apocalyptic number.

It is an amenable number.

20005424049 is a deficient number, since it is larger than the sum of its proper divisors (8720313103).

20005424049 is a wasteful number, since it uses less digits than its factorization.

20005424049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512959607.

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 20005424049 in words is "twenty billion, five million, four hundred twenty-four thousand, forty-nine".