1111679999 has 4 divisors (see below), whose sum is σ = 1160013936. Its totient is φ = 1063346064.

The previous prime is 1111679993. The next prime is 1111680001. The reversal of 1111679999 is 9999761111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1111679999 - 2⁴ = 1111679983 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 1111679999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111679993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24166934 + ... + 24166979.

It is an arithmetic number, because the mean of its divisors is an integer number (290003484).

Almost surely, 2^1111679999 is an apocalyptic number.

1111679999 is a deficient number, since it is larger than the sum of its proper divisors (48333937).

1111679999 is an equidigital number, since it uses as much as digits as its factorization.

1111679999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48333936.

The product of its digits is 275562, while the sum is 53.

The square root of 1111679999 is about 33341.8655596834. The cubic root of 1111679999 is about 1035.9209051858.

The spelling of 1111679999 in words is "one billion, one hundred eleven million, six hundred seventy-nine thousand, nine hundred ninety-nine".