1121686792 has 16 divisors (see below), whose sum is σ = 2226878460. Its totient is φ = 527852544.

The previous prime is 1121686781. The next prime is 1121686807. The reversal of 1121686792 is 2976861211.

It can be written as a sum of positive squares in 2 ways, for example, as 1101310596 + 20376196 = 33186^2 + 4514^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4123713 + ... + 4123984.

Almost surely, 2^1121686792 is an apocalyptic number.

It is an amenable number.

1121686792 is a deficient number, since it is larger than the sum of its proper divisors (1105191668).

1121686792 is a wasteful number, since it uses less digits than its factorization.

1121686792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8247720 (or 8247716 counting only the distinct ones).

The product of its digits is 72576, while the sum is 43.

The square root of 1121686792 is about 33491.5928555212. The cubic root of 1121686792 is about 1039.0199075222.

The spelling of 1121686792 in words is "one billion, one hundred twenty-one million, six hundred eighty-six thousand, seven hundred ninety-two".