85385461547 has 2 divisors, whose sum is σ = 85385461548. Its totient is φ = 85385461546.

The previous prime is 85385461543. The next prime is 85385461571. The reversal of 85385461547 is 74516458358.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85385461547 - 2² = 85385461543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85385461492 and 85385461501.

It is not a weakly prime, because it can be changed into another prime (85385461543) 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, 42692730773 + 42692730774.

It is an arithmetic number, because the mean of its divisors is an integer number (42692730774).

Almost surely, 2^85385461547 is an apocalyptic number.

85385461547 is a deficient number, since it is larger than the sum of its proper divisors (1).

85385461547 is an equidigital number, since it uses as much as digits as its factorization.

85385461547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128000, while the sum is 56.

The spelling of 85385461547 in words is "eighty-five billion, three hundred eighty-five million, four hundred sixty-one thousand, five hundred forty-seven".