611071357109 has 2 divisors, whose sum is σ = 611071357110. Its totient is φ = 611071357108.

The previous prime is 611071357027. The next prime is 611071357151. The reversal of 611071357109 is 901753170116.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 488363368900 + 122707988209 = 698830^2 + 350297^2 .

It is a cyclic number.

It is not a de Polignac number, because 611071357109 - 2²⁴ = 611054579893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (611071357909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305535678554 + 305535678555.

It is an arithmetic number, because the mean of its divisors is an integer number (305535678555).

Almost surely, 2^611071357109 is an apocalyptic number.

It is an amenable number.

611071357109 is a deficient number, since it is larger than the sum of its proper divisors (1).

611071357109 is an equidigital number, since it uses as much as digits as its factorization.

611071357109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39690, while the sum is 41.

The spelling of 611071357109 in words is "six hundred eleven billion, seventy-one million, three hundred fifty-seven thousand, one hundred nine".