20238596817 has 8 divisors (see below), whose sum is σ = 27005606496. Its totient is φ = 13481992512.

The previous prime is 20238596813. The next prime is 20238596867. The reversal of 20238596817 is 71869583202.

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

It is not a de Polignac number, because 20238596817 - 2² = 20238596813 is a prime.

It is a super-2 number, since 2×20238596817² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20238596817.

It is not an unprimeable number, because it can be changed into a prime (20238596813) 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, 2596803 + ... + 2604584.

It is an arithmetic number, because the mean of its divisors is an integer number (3375700812).

Almost surely, 2^20238596817 is an apocalyptic number.

It is an amenable number.

20238596817 is a deficient number, since it is larger than the sum of its proper divisors (6767009679).

20238596817 is a wasteful number, since it uses less digits than its factorization.

20238596817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5202687.

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 20238596817 in words is "twenty billion, two hundred thirty-eight million, five hundred ninety-six thousand, eight hundred seventeen".