6111439109 has 2 divisors, whose sum is σ = 6111439110. Its totient is φ = 6111439108.

The previous prime is 6111439079. The next prime is 6111439133. The reversal of 6111439109 is 9019341116.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4571112100 + 1540327009 = 67610^2 + 39247^2 .

It is a cyclic number.

It is not a de Polignac number, because 6111439109 - 2²⁸ = 5843003653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6111439189) 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, 3055719554 + 3055719555.

It is an arithmetic number, because the mean of its divisors is an integer number (3055719555).

Almost surely, 2^6111439109 is an apocalyptic number.

It is an amenable number.

6111439109 is a deficient number, since it is larger than the sum of its proper divisors (1).

6111439109 is an equidigital number, since it uses as much as digits as its factorization.

6111439109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 35.

The square root of 6111439109 is about 78175.6938504546. The cubic root of 6111439109 is about 1828.3015594070.

The spelling of 6111439109 in words is "six billion, one hundred eleven million, four hundred thirty-nine thousand, one hundred nine".