1117509899 has 24 divisors (see below), whose sum is σ = 1272937680. Its totient is φ = 979616000.

The previous prime is 1117509889. The next prime is 1117509923. The reversal of 1117509899 is 9989057111.

It is a de Polignac number, because none of the positive numbers 2^k-1117509899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1117509839) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 440264 + ... + 442794.

It is an arithmetic number, because the mean of its divisors is an integer number (53039070).

Almost surely, 2^1117509899 is an apocalyptic number.

1117509899 is a deficient number, since it is larger than the sum of its proper divisors (155427781).

1117509899 is a wasteful number, since it uses less digits than its factorization.

1117509899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2683 (or 2672 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 50.

The square root of 1117509899 is about 33429.1773605035. The cubic root of 1117509899 is about 1037.7286162673.

The spelling of 1117509899 in words is "one billion, one hundred seventeen million, five hundred nine thousand, eight hundred ninety-nine".