20424554673 has 8 divisors (see below), whose sum is σ = 27233495136. Its totient is φ = 13615992000.

The previous prime is 20424554663. The next prime is 20424554699. The reversal of 20424554673 is 37645542402.

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

It is not a de Polignac number, because 20424554673 - 2⁸ = 20424554417 is a prime.

It is a super-2 number, since 2×20424554673² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20424554663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75273 + ... + 215673.

It is an arithmetic number, because the mean of its divisors is an integer number (3404186892).

Almost surely, 2^20424554673 is an apocalyptic number.

It is an amenable number.

20424554673 is a deficient number, since it is larger than the sum of its proper divisors (6808940463).

20424554673 is a wasteful number, since it uses less digits than its factorization.

20424554673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188895.

The product of its (nonzero) digits is 806400, while the sum is 42.

The spelling of 20424554673 in words is "twenty billion, four hundred twenty-four million, five hundred fifty-four thousand, six hundred seventy-three".