6428805140855 has 8 divisors (see below), whose sum is σ = 7719017746752. Its totient is φ = 5140076394208.

The previous prime is 6428805140843. The next prime is 6428805140861. The reversal of 6428805140855 is 5580415088246.

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 6428805140855 - 2¹⁰ = 6428805139831 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6428805140855.

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 7 ways as a sum of consecutive naturals, for example, 370955279 + ... + 370972608.

It is an arithmetic number, because the mean of its divisors is an integer number (964877218344).

Almost surely, 2^{6428805140855} is an apocalyptic number.

6428805140855 is a deficient number, since it is larger than the sum of its proper divisors (1290212605897).

6428805140855 is a wasteful number, since it uses less digits than its factorization.

6428805140855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741929625.

The product of its (nonzero) digits is 12288000, while the sum is 56.

The spelling of 6428805140855 in words is "six trillion, four hundred twenty-eight billion, eight hundred five million, one hundred forty thousand, eight hundred fifty-five".