6111109993 has 2 divisors, whose sum is σ = 6111109994. Its totient is φ = 6111109992.

The previous prime is 6111109987. The next prime is 6111110009. The reversal of 6111109993 is 3999011116.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5406366784 + 704743209 = 73528^2 + 26547^2 .

It is a cyclic number.

It is not a de Polignac number, because 6111109993 - 2¹⁷ = 6110978921 is a prime.

It is not a weakly prime, because it can be changed into another prime (6111109943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3055554996 + 3055554997.

It is an arithmetic number, because the mean of its divisors is an integer number (3055554997).

Almost surely, 2^6111109993 is an apocalyptic number.

It is an amenable number.

6111109993 is a deficient number, since it is larger than the sum of its proper divisors (1).

6111109993 is an equidigital number, since it uses as much as digits as its factorization.

6111109993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13122, while the sum is 40.

The square root of 6111109993 is about 78173.5888455941. The cubic root of 6111109993 is about 1828.2687393086.

The spelling of 6111109993 in words is "six billion, one hundred eleven million, one hundred nine thousand, nine hundred ninety-three".