1128526867778 has 8 divisors (see below), whose sum is σ = 1693608476220. Its totient is φ = 563990709040.

The previous prime is 1128526867777. The next prime is 1128526867799. The reversal of 1128526867778 is 8777686258211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1094603490289 + 33923377489 = 1046233^2 + 184183^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1128526867777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136357253 + ... + 136365528.

Almost surely, 2^{1128526867778} is an apocalyptic number.

1128526867778 is a deficient number, since it is larger than the sum of its proper divisors (565081608442).

1128526867778 is a wasteful number, since it uses less digits than its factorization.

1128526867778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272724852.

The product of its digits is 126443520, while the sum is 68.

The spelling of 1128526867778 in words is "one trillion, one hundred twenty-eight billion, five hundred twenty-six million, eight hundred sixty-seven thousand, seven hundred seventy-eight".