20238241917 has 8 divisors (see below), whose sum is σ = 27045237024. Its totient is φ = 13461704048.

The previous prime is 20238241867. The next prime is 20238241939. The reversal of 20238241917 is 71914283202.

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 20238241917 - 2¹¹ = 20238239869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20238241987) 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, 7612758 + ... + 7615415.

It is an arithmetic number, because the mean of its divisors is an integer number (3380654628).

Almost surely, 2^20238241917 is an apocalyptic number.

It is an amenable number.

20238241917 is a deficient number, since it is larger than the sum of its proper divisors (6806995107).

20238241917 is a wasteful number, since it uses less digits than its factorization.

20238241917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15228619.

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 20238241917 in words is "twenty billion, two hundred thirty-eight million, two hundred forty-one thousand, nine hundred seventeen".