1128269986215 has 12 divisors (see below), whose sum is σ = 1805238560184. Its totient is φ = 601741798576.

The previous prime is 1128269986187. The next prime is 1128269986229. The reversal of 1128269986215 is 5126899628211.

It is not a de Polignac number, because 1128269986215 - 2¹⁹ = 1128269461927 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 (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3976756 + ... + 4251014.

It is an arithmetic number, because the mean of its divisors is an integer number (150436546682).

Almost surely, 2^{1128269986215} is an apocalyptic number.

1128269986215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1128269986215 is a deficient number, since it is larger than the sum of its proper divisors (676968573969).

1128269986215 is an frugal number, since it uses more digits than its factorization.

1128269986215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548526 (or 274267 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 60.

Multiplying 1128269986215 by its sum of digits (60), we get a square (67696199172900 = 8227770²).

The spelling of 1128269986215 in words is "one trillion, one hundred twenty-eight billion, two hundred sixty-nine million, nine hundred eighty-six thousand, two hundred fifteen".