190444946819 has 2 divisors, whose sum is σ = 190444946820. Its totient is φ = 190444946818.

The previous prime is 190444946789. The next prime is 190444946843. The reversal of 190444946819 is 918649444091.

It is a happy number.

190444946819 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 a de Polignac number, because none of the positive numbers 2^k-190444946819 is a prime.

It is a super-2 number, since 2×190444946819² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (190444946869) 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, 95222473409 + 95222473410.

It is an arithmetic number, because the mean of its divisors is an integer number (95222473410).

Almost surely, 2^190444946819 is an apocalyptic number.

190444946819 is a deficient number, since it is larger than the sum of its proper divisors (1).

190444946819 is an equidigital number, since it uses as much as digits as its factorization.

190444946819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8957952, while the sum is 59.

The spelling of 190444946819 in words is "one hundred ninety billion, four hundred forty-four million, nine hundred forty-six thousand, eight hundred nineteen".