196857821119 has 2 divisors, whose sum is σ = 196857821120. Its totient is φ = 196857821118.

The previous prime is 196857821047. The next prime is 196857821131. The reversal of 196857821119 is 911128758691.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 196857821119 - 2¹¹ = 196857819071 is a prime.

It is a super-2 number, since 2×196857821119² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196857861119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98428910559 + 98428910560.

It is an arithmetic number, because the mean of its divisors is an integer number (98428910560).

Almost surely, 2^196857821119 is an apocalyptic number.

196857821119 is a deficient number, since it is larger than the sum of its proper divisors (1).

196857821119 is an equidigital number, since it uses as much as digits as its factorization.

196857821119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2177280, while the sum is 58.

The spelling of 196857821119 in words is "one hundred ninety-six billion, eight hundred fifty-seven million, eight hundred twenty-one thousand, one hundred nineteen".