1117500018 has 32 divisors (see below), whose sum is σ = 2332737792. Its totient is φ = 356553600.

The previous prime is 1117499969. The next prime is 1117500019. The reversal of 1117500018 is 8100057111.

It is not an unprimeable number, because it can be changed into a prime (1117500019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29818 + ... + 55893.

It is an arithmetic number, because the mean of its divisors is an integer number (72898056).

Almost surely, 2^1117500018 is an apocalyptic number.

1117500018 is an abundant number, since it is smaller than the sum of its proper divisors (1215237774).

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

1117500018 is a wasteful number, since it uses less digits than its factorization.

1117500018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85810.

The product of its (nonzero) digits is 280, while the sum is 24.

The square root of 1117500018 is about 33429.0295701206. The cubic root of 1117500018 is about 1037.7255577331.

Adding to 1117500018 its reverse (8100057111), we get a palindrome (9217557129).

The spelling of 1117500018 in words is "one billion, one hundred seventeen million, five hundred thousand, eighteen".