85378581603145 has 48 divisors (see below), whose sum is σ = 109813142838672. Its totient is φ = 63682529771520.

The previous prime is 85378581603131. The next prime is 85378581603167. The reversal of 85378581603145 is 54130618587358.

It can be written as a sum of positive squares in 8 ways, for example, as 47198590035129 + 38179991568016 = 6870123^2 + 6178996^2 .

It is not a de Polignac number, because 85378581603145 - 2⁷ = 85378581603017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 120780649 + ... + 121485481.

It is an arithmetic number, because the mean of its divisors is an integer number (2287773809139).

Almost surely, 2^{85378581603145} is an apocalyptic number.

It is an amenable number.

85378581603145 is a deficient number, since it is larger than the sum of its proper divisors (24434561235527).

85378581603145 is a wasteful number, since it uses less digits than its factorization.

85378581603145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706042 (or 706019 counting only the distinct ones).

The product of its (nonzero) digits is 96768000, while the sum is 64.

The spelling of 85378581603145 in words is "eighty-five trillion, three hundred seventy-eight billion, five hundred eighty-one million, six hundred three thousand, one hundred forty-five".