190393970843 has 2 divisors, whose sum is σ = 190393970844. Its totient is φ = 190393970842.

The previous prime is 190393970821. The next prime is 190393970863. The reversal of 190393970843 is 348079393091.

190393970843 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 is a cyclic number.

It is not a de Polignac number, because 190393970843 - 2¹⁴ = 190393954459 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (190393970863) 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, 95196985421 + 95196985422.

It is an arithmetic number, because the mean of its divisors is an integer number (95196985422).

Almost surely, 2^190393970843 is an apocalyptic number.

190393970843 is a deficient number, since it is larger than the sum of its proper divisors (1).

190393970843 is an equidigital number, since it uses as much as digits as its factorization.

190393970843 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4408992, while the sum is 56.

The spelling of 190393970843 in words is "one hundred ninety billion, three hundred ninety-three million, nine hundred seventy thousand, eight hundred forty-three".