20148424309 has 8 divisors (see below), whose sum is σ = 21708183392. Its totient is φ = 18590076720.

The previous prime is 20148424291. The next prime is 20148424321. The reversal of 20148424309 is 90342484102.

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

It is a cyclic number.

It is not a de Polignac number, because 20148424309 - 2⁹ = 20148423797 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 (20148424369) 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, 323127 + ... + 380404.

It is an arithmetic number, because the mean of its divisors is an integer number (2713522924).

Almost surely, 2^20148424309 is an apocalyptic number.

It is an amenable number.

20148424309 is a deficient number, since it is larger than the sum of its proper divisors (1559759083).

20148424309 is a wasteful number, since it uses less digits than its factorization.

20148424309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705747.

The product of its (nonzero) digits is 55296, while the sum is 37.

The spelling of 20148424309 in words is "twenty billion, one hundred forty-eight million, four hundred twenty-four thousand, three hundred nine".