1128117693 has 8 divisors (see below), whose sum is σ = 1504455328. Its totient is φ = 751929264.

The previous prime is 1128117689. The next prime is 1128117703. The reversal of 1128117693 is 3967118211.

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

It is not a de Polignac number, because 1128117693 - 2² = 1128117689 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128117623) 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 7 ways as a sum of consecutive naturals, for example, 18271 + ... + 50892.

It is an arithmetic number, because the mean of its divisors is an integer number (188056916).

Almost surely, 2^1128117693 is an apocalyptic number.

It is an amenable number.

1128117693 is a deficient number, since it is larger than the sum of its proper divisors (376337635).

1128117693 is an equidigital number, since it uses as much as digits as its factorization.

1128117693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74603.

The product of its digits is 18144, while the sum is 39.

The square root of 1128117693 is about 33587.4633308322. The cubic root of 1128117693 is about 1041.0017754272.

The spelling of 1128117693 in words is "one billion, one hundred twenty-eight million, one hundred seventeen thousand, six hundred ninety-three".