1428585800865 has 16 divisors (see below), whose sum is σ = 2317048752768. Its totient is φ = 751475270016.

The previous prime is 1428585800839. The next prime is 1428585800867. The reversal of 1428585800865 is 5680085858241.

It is not a de Polignac number, because 1428585800865 - 2¹¹ = 1428585798817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1428585800799 and 1428585800808.

It is not an unprimeable number, because it can be changed into a prime (1428585800867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 652321189 + ... + 652323378.

It is an arithmetic number, because the mean of its divisors is an integer number (144815547048).

Almost surely, 2^{1428585800865} is an apocalyptic number.

1428585800865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1428585800865 is a deficient number, since it is larger than the sum of its proper divisors (888462951903).

1428585800865 is a wasteful number, since it uses less digits than its factorization.

1428585800865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304644648.

The product of its (nonzero) digits is 24576000, while the sum is 60.

The spelling of 1428585800865 in words is "one trillion, four hundred twenty-eight billion, five hundred eighty-five million, eight hundred thousand, eight hundred sixty-five".