190808074091 has 2 divisors, whose sum is σ = 190808074092. Its totient is φ = 190808074090.

The previous prime is 190808074087. The next prime is 190808074151. The reversal of 190808074091 is 190470808091.

190808074091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 190808074091 - 2² = 190808074087 is a prime.

It is a super-3 number, since 3×190808074091³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (190808073091) 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, 95404037045 + 95404037046.

It is an arithmetic number, because the mean of its divisors is an integer number (95404037046).

Almost surely, 2^190808074091 is an apocalyptic number.

190808074091 is a deficient number, since it is larger than the sum of its proper divisors (1).

190808074091 is an equidigital number, since it uses as much as digits as its factorization.

190808074091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 47.

The spelling of 190808074091 in words is "one hundred ninety billion, eight hundred eight million, seventy-four thousand, ninety-one".