1128865242819 has 16 divisors (see below), whose sum is σ = 1506033286560. Its totient is φ = 752137148160.

The previous prime is 1128865242803. The next prime is 1128865242829. The reversal of 1128865242819 is 9182425688211.

It is a happy number.

It is not a de Polignac number, because 1128865242819 - 2⁴ = 1128865242803 is a prime.

It is a super-2 number, since 2×1128865242819² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1128865242829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44150799 + ... + 44176359.

It is an arithmetic number, because the mean of its divisors is an integer number (94127080410).

Almost surely, 2^{1128865242819} is an apocalyptic number.

1128865242819 is a deficient number, since it is larger than the sum of its proper divisors (377168043741).

1128865242819 is a wasteful number, since it uses less digits than its factorization.

1128865242819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33590.

The product of its digits is 4423680, while the sum is 57.

The spelling of 1128865242819 in words is "one trillion, one hundred twenty-eight billion, eight hundred sixty-five million, two hundred forty-two thousand, eight hundred nineteen".