4999999111 has 4 divisors (see below), whose sum is σ = 5001668224. Its totient is φ = 4998330000.

The previous prime is 4999999091. The next prime is 4999999177. The reversal of 4999999111 is 1119999994.

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 4999999111 - 2¹¹ = 4999997063 is a prime.

It is a super-2 number, since 2×4999999111² = 49999982220001580642, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4999999111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4999999811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 830055 + ... + 836056.

It is an arithmetic number, because the mean of its divisors is an integer number (1250417056).

Almost surely, 2^4999999111 is an apocalyptic number.

4999999111 is a deficient number, since it is larger than the sum of its proper divisors (1669113).

4999999111 is a wasteful number, since it uses less digits than its factorization.

4999999111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1669112.

The product of its digits is 2125764, while the sum is 61.

The square root of 4999999111 is about 70710.6718324752. The cubic root of 4999999111 is about 1709.9758453321.

The spelling of 4999999111 in words is "four billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, one hundred eleven".