2105298368069 has 8 divisors (see below), whose sum is σ = 2271314860920. Its totient is φ = 1939863370176.

The previous prime is 2105298368051. The next prime is 2105298368071. The reversal of 2105298368069 is 9608638925012.

It can be written as a sum of positive squares in 4 ways, for example, as 7406839969 + 2097891528100 = 86063^2 + 1448410^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2105298368069 - 2²⁸ = 2105029932613 is a prime.

It is a super-2 number, since 2×2105298368069² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2105298367999 and 2105298368017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105298368969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145366214 + ... + 145380695.

It is an arithmetic number, because the mean of its divisors is an integer number (283914357615).

Almost surely, 2^{2105298368069} is an apocalyptic number.

It is an amenable number.

2105298368069 is a deficient number, since it is larger than the sum of its proper divisors (166016492851).

2105298368069 is a wasteful number, since it uses less digits than its factorization.

2105298368069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290747479.

The product of its (nonzero) digits is 11197440, while the sum is 59.

The spelling of 2105298368069 in words is "two trillion, one hundred five billion, two hundred ninety-eight million, three hundred sixty-eight thousand, sixty-nine".