6109621168897 has 2 divisors, whose sum is σ = 6109621168898. Its totient is φ = 6109621168896.

The previous prime is 6109621168813. The next prime is 6109621168907. The reversal of 6109621168897 is 7988611269016.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5970574962576 + 139046206321 = 2443476^2 + 372889^2 .

It is a cyclic number.

It is not a de Polignac number, because 6109621168897 - 2²³ = 6109612780289 is a prime.

It is not a weakly prime, because it can be changed into another prime (6109621168597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3054810584448 + 3054810584449.

It is an arithmetic number, because the mean of its divisors is an integer number (3054810584449).

Almost surely, 2^{6109621168897} is an apocalyptic number.

It is an amenable number.

6109621168897 is a deficient number, since it is larger than the sum of its proper divisors (1).

6109621168897 is an equidigital number, since it uses as much as digits as its factorization.

6109621168897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15676416, while the sum is 64.

The spelling of 6109621168897 in words is "six trillion, one hundred nine billion, six hundred twenty-one million, one hundred sixty-eight thousand, eight hundred ninety-seven".