2068853968189 has 4 divisors (see below), whose sum is σ = 2082738894300. Its totient is φ = 2054969042080.

The previous prime is 2068853968171. The next prime is 2068853968243. The reversal of 2068853968189 is 9818693588602.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 979456605625 + 1089397362564 = 989675^2 + 1043742^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2068853968189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2068853968789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6942462832 + ... + 6942463129.

It is an arithmetic number, because the mean of its divisors is an integer number (520684723575).

Almost surely, 2^{2068853968189} is an apocalyptic number.

It is an amenable number.

2068853968189 is a deficient number, since it is larger than the sum of its proper divisors (13884926111).

2068853968189 is a wasteful number, since it uses less digits than its factorization.

2068853968189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13884926110.

The product of its (nonzero) digits is 358318080, while the sum is 73.

The spelling of 2068853968189 in words is "two trillion, sixty-eight billion, eight hundred fifty-three million, nine hundred sixty-eight thousand, one hundred eighty-nine".