6428666365 has 16 divisors (see below), whose sum is σ = 8910751680. Its totient is φ = 4400369920.

The previous prime is 6428666351. The next prime is 6428666441. The reversal of 6428666365 is 5636668246.

It is not a de Polignac number, because 6428666365 - 2¹¹ = 6428664317 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3436855 + ... + 3438724.

It is an arithmetic number, because the mean of its divisors is an integer number (556921980).

Almost surely, 2^6428666365 is an apocalyptic number.

It is an amenable number.

6428666365 is a deficient number, since it is larger than the sum of its proper divisors (2482085315).

6428666365 is a wasteful number, since it uses less digits than its factorization.

6428666365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6875612.

The product of its digits is 7464960, while the sum is 52.

The square root of 6428666365 is about 80178.9646041903. The cubic root of 6428666365 is about 1859.4034357876.

The spelling of 6428666365 in words is "six billion, four hundred twenty-eight million, six hundred sixty-six thousand, three hundred sixty-five".