6420506288 has 20 divisors (see below), whose sum is σ = 14216835600. Its totient is φ = 2751645504.

The previous prime is 6420506227. The next prime is 6420506311. The reversal of 6420506288 is 8826050246.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 28662863 + ... + 28663086.

It is an arithmetic number, because the mean of its divisors is an integer number (710841780).

Almost surely, 2^6420506288 is an apocalyptic number.

It is an amenable number.

6420506288 is an abundant number, since it is smaller than the sum of its proper divisors (7796329312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6420506288 is a wasteful number, since it uses less digits than its factorization.

6420506288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57325964 (or 57325958 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 41.

The square root of 6420506288 is about 80128.0618010944. The cubic root of 6420506288 is about 1858.6163726210.

The spelling of 6420506288 in words is "six billion, four hundred twenty million, five hundred six thousand, two hundred eighty-eight".