1111788897 has 8 divisors (see below), whose sum is σ = 1510354944. Its totient is φ = 727207728.

The previous prime is 1111788893. The next prime is 1111788919. The reversal of 1111788897 is 7988871111.

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

It is not a de Polignac number, because 1111788897 - 2² = 1111788893 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1111788893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3496033 + ... + 3496350.

It is an arithmetic number, because the mean of its divisors is an integer number (188794368).

Almost surely, 2^1111788897 is an apocalyptic number.

It is an amenable number.

1111788897 is a deficient number, since it is larger than the sum of its proper divisors (398566047).

1111788897 is an equidigital number, since it uses as much as digits as its factorization.

1111788897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6992439.

The product of its digits is 225792, while the sum is 51.

The square root of 1111788897 is about 33343.4985716856. The cubic root of 1111788897 is about 1035.9547296771.

The spelling of 1111788897 in words is "one billion, one hundred eleven million, seven hundred eighty-eight thousand, eight hundred ninety-seven".