6420255326 has 8 divisors (see below), whose sum is σ = 10196876160. Its totient is φ = 3021296608.

The previous prime is 6420255311. The next prime is 6420255349. The reversal of 6420255326 is 6235520246.

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

It is a super-3 number, since 3×6420255326³ (a number of 30 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94415486 + ... + 94415553.

It is an arithmetic number, because the mean of its divisors is an integer number (1274609520).

Almost surely, 2^6420255326 is an apocalyptic number.

6420255326 is a deficient number, since it is larger than the sum of its proper divisors (3776620834).

6420255326 is a wasteful number, since it uses less digits than its factorization.

6420255326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188831058.

The product of its (nonzero) digits is 86400, while the sum is 35.

The square root of 6420255326 is about 80126.4957801101. The cubic root of 6420255326 is about 1858.5921560386.

The spelling of 6420255326 in words is "six billion, four hundred twenty million, two hundred fifty-five thousand, three hundred twenty-six".