200421641863 has 8 divisors (see below), whose sum is σ = 203949745280. Its totient is φ = 196909324920.

The previous prime is 200421641857. The next prime is 200421641869. The reversal of 200421641863 is 368146124002.

It is an interprime number because it is at equal distance from previous prime (200421641857) and next prime (200421641869).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200421641863 is a prime.

It is a super-2 number, since 2×200421641863² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200421641869) 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, 3921003 + ... + 3971788.

It is an arithmetic number, because the mean of its divisors is an integer number (25493718160).

Almost surely, 2^200421641863 is an apocalyptic number.

200421641863 is a deficient number, since it is larger than the sum of its proper divisors (3528103417).

200421641863 is an equidigital number, since it uses as much as digits as its factorization.

200421641863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7893237.

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

Adding to 200421641863 its reverse (368146124002), we get a palindrome (568567765865).

The spelling of 200421641863 in words is "two hundred billion, four hundred twenty-one million, six hundred forty-one thousand, eight hundred sixty-three".