6423221887 has 8 divisors (see below), whose sum is σ = 6450566976. Its totient is φ = 6395914272.

The previous prime is 6423221873. The next prime is 6423221899. The reversal of 6423221887 is 7881223246.

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 6423221887 - 2²³ = 6414833279 is a prime.

It is a super-3 number, since 3×6423221887³ (a number of 30 digits) contains 333 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 (6423221087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365578 + ... + 382744.

It is an arithmetic number, because the mean of its divisors is an integer number (806320872).

Almost surely, 2^6423221887 is an apocalyptic number.

6423221887 is a deficient number, since it is larger than the sum of its proper divisors (27345089).

6423221887 is a wasteful number, since it uses less digits than its factorization.

6423221887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18737.

The product of its digits is 258048, while the sum is 43.

The square root of 6423221887 is about 80145.0053777526. The cubic root of 6423221887 is about 1858.8783740434.

The spelling of 6423221887 in words is "six billion, four hundred twenty-three million, two hundred twenty-one thousand, eight hundred eighty-seven".