6109621168813 has 2 divisors, whose sum is σ = 6109621168814. Its totient is φ = 6109621168812.

The previous prime is 6109621168771. The next prime is 6109621168897. The reversal of 6109621168813 is 3188611269016.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5301515460004 + 808105708809 = 2302502^2 + 898947^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6109621168813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6109621138813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3054810584406 + 3054810584407.

It is an arithmetic number, because the mean of its divisors is an integer number (3054810584407).

Almost surely, 2^{6109621168813} is an apocalyptic number.

It is an amenable number.

6109621168813 is a deficient number, since it is larger than the sum of its proper divisors (1).

6109621168813 is an equidigital number, since it uses as much as digits as its factorization.

6109621168813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 746496, while the sum is 52.

The spelling of 6109621168813 in words is "six trillion, one hundred nine billion, six hundred twenty-one million, one hundred sixty-eight thousand, eight hundred thirteen".