85168508351 has 2 divisors, whose sum is σ = 85168508352. Its totient is φ = 85168508350.

The previous prime is 85168508339. The next prime is 85168508353. The reversal of 85168508351 is 15380586158.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85168508351 is a prime.

Together with 85168508353, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85168508351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85168508353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42584254175 + 42584254176.

It is an arithmetic number, because the mean of its divisors is an integer number (42584254176).

Almost surely, 2^85168508351 is an apocalyptic number.

85168508351 is a deficient number, since it is larger than the sum of its proper divisors (1).

85168508351 is an equidigital number, since it uses as much as digits as its factorization.

85168508351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152000, while the sum is 50.

The spelling of 85168508351 in words is "eighty-five billion, one hundred sixty-eight million, five hundred eight thousand, three hundred fifty-one".