190843268197 has 2 divisors, whose sum is σ = 190843268198. Its totient is φ = 190843268196.

The previous prime is 190843268101. The next prime is 190843268233. The reversal of 190843268197 is 791862348091.

190843268197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140991989121 + 49851279076 = 375489^2 + 223274^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190843268197 is a prime.

It is a super-2 number, since 2×190843268197² (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 (190843263197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95421634098 + 95421634099.

It is an arithmetic number, because the mean of its divisors is an integer number (95421634099).

Almost surely, 2^190843268197 is an apocalyptic number.

It is an amenable number.

190843268197 is a deficient number, since it is larger than the sum of its proper divisors (1).

190843268197 is an equidigital number, since it uses as much as digits as its factorization.

190843268197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5225472, while the sum is 58.

The spelling of 190843268197 in words is "one hundred ninety billion, eight hundred forty-three million, two hundred sixty-eight thousand, one hundred ninety-seven".