85647525163 has 2 divisors, whose sum is σ = 85647525164. Its totient is φ = 85647525162.

The previous prime is 85647525113. The next prime is 85647525181. The reversal of 85647525163 is 36152574658.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85647525163 - 2¹³ = 85647516971 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85647525163.

It is not a weakly prime, because it can be changed into another prime (85647525113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42823762581 + 42823762582.

It is an arithmetic number, because the mean of its divisors is an integer number (42823762582).

Almost surely, 2^85647525163 is an apocalyptic number.

85647525163 is a deficient number, since it is larger than the sum of its proper divisors (1).

85647525163 is an equidigital number, since it uses as much as digits as its factorization.

85647525163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048000, while the sum is 52.

The spelling of 85647525163 in words is "eighty-five billion, six hundred forty-seven million, five hundred twenty-five thousand, one hundred sixty-three".