20172310417 has 8 divisors (see below), whose sum is σ = 23056408512. Its totient is φ = 17288797200.

The previous prime is 20172310363. The next prime is 20172310427. The reversal of 20172310417 is 71401327102.

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 20172310417 - 2¹¹ = 20172308369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20172310427) 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, 69634 + ... + 212587.

It is an arithmetic number, because the mean of its divisors is an integer number (2882051064).

Almost surely, 2^20172310417 is an apocalyptic number.

It is an amenable number.

20172310417 is a deficient number, since it is larger than the sum of its proper divisors (2884098095).

20172310417 is a wasteful number, since it uses less digits than its factorization.

20172310417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292439.

The product of its (nonzero) digits is 2352, while the sum is 28.

Adding to 20172310417 its reverse (71401327102), we get a palindrome (91573637519).

The spelling of 20172310417 in words is "twenty billion, one hundred seventy-two million, three hundred ten thousand, four hundred seventeen".