1117808712 has 48 divisors (see below), whose sum is σ = 3131797500. Its totient is φ = 359753856.

The previous prime is 1117808711. The next prime is 1117808719. The reversal of 1117808712 is 2178087111.

It can be written as a sum of positive squares in 2 ways, for example, as 1116495396 + 1313316 = 33414^2 + 1146^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1117808711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 265587 + ... + 269762.

Almost surely, 2^1117808712 is an apocalyptic number.

1117808712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1117808712 is an abundant number, since it is smaller than the sum of its proper divisors (2013988788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1117808712 is a wasteful number, since it uses less digits than its factorization.

1117808712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535390 (or 535383 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 36.

The square root of 1117808712 is about 33433.6464059785. The cubic root of 1117808712 is about 1037.8211014039.

The spelling of 1117808712 in words is "one billion, one hundred seventeen million, eight hundred eight thousand, seven hundred twelve".