806194678951 has 2 divisors, whose sum is σ = 806194678952. Its totient is φ = 806194678950.

The previous prime is 806194678937. The next prime is 806194678957. The reversal of 806194678951 is 159876491608.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 806194678951 - 2⁹ = 806194678439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (806194678957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 403097339475 + 403097339476.

It is an arithmetic number, because the mean of its divisors is an integer number (403097339476).

Almost surely, 2^806194678951 is an apocalyptic number.

806194678951 is a deficient number, since it is larger than the sum of its proper divisors (1).

806194678951 is an equidigital number, since it uses as much as digits as its factorization.

806194678951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26127360, while the sum is 64.

The spelling of 806194678951 in words is "eight hundred six billion, one hundred ninety-four million, six hundred seventy-eight thousand, nine hundred fifty-one".