852167980891 has 2 divisors, whose sum is σ = 852167980892. Its totient is φ = 852167980890.

The previous prime is 852167980849. The next prime is 852167980919. The reversal of 852167980891 is 198089761258.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 852167980891 - 2¹¹ = 852167978843 is a prime.

It is not a weakly prime, because it can be changed into another prime (852167980831) 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, 426083990445 + 426083990446.

It is an arithmetic number, because the mean of its divisors is an integer number (426083990446).

Almost surely, 2^852167980891 is an apocalyptic number.

852167980891 is a deficient number, since it is larger than the sum of its proper divisors (1).

852167980891 is an equidigital number, since it uses as much as digits as its factorization.

852167980891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17418240, while the sum is 64.

The spelling of 852167980891 in words is "eight hundred fifty-two billion, one hundred sixty-seven million, nine hundred eighty thousand, eight hundred ninety-one".