85091825985 has 16 divisors (see below), whose sum is σ = 136757451264. Its totient is φ = 45178797312.

The previous prime is 85091825971. The next prime is 85091826073. The reversal of 85091825985 is 58952819058.

It is not a de Polignac number, because 85091825985 - 2⁴ = 85091825969 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12715912 + ... + 12722601.

It is an arithmetic number, because the mean of its divisors is an integer number (8547340704).

Almost surely, 2^85091825985 is an apocalyptic number.

It is an amenable number.

85091825985 is a deficient number, since it is larger than the sum of its proper divisors (51665625279).

85091825985 is a wasteful number, since it uses less digits than its factorization.

85091825985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25438744.

The product of its (nonzero) digits is 10368000, while the sum is 60.

The spelling of 85091825985 in words is "eighty-five billion, ninety-one million, eight hundred twenty-five thousand, nine hundred eighty-five".