190961668867 has 2 divisors, whose sum is σ = 190961668868. Its totient is φ = 190961668866.

The previous prime is 190961668847. The next prime is 190961668873. The reversal of 190961668867 is 768866169091.

190961668867 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 190961668867 - 2⁷ = 190961668739 is a prime.

It is not a weakly prime, because it can be changed into another prime (190961668817) 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, 95480834433 + 95480834434.

It is an arithmetic number, because the mean of its divisors is an integer number (95480834434).

Almost surely, 2^190961668867 is an apocalyptic number.

190961668867 is a deficient number, since it is larger than the sum of its proper divisors (1).

190961668867 is an equidigital number, since it uses as much as digits as its factorization.

190961668867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47029248, while the sum is 67.

The spelling of 190961668867 in words is "one hundred ninety billion, nine hundred sixty-one million, six hundred sixty-eight thousand, eight hundred sixty-seven".