85078344347841 has 16 divisors (see below), whose sum is σ = 122163941970560. Its totient is φ = 52355833297920.

The previous prime is 85078344347827. The next prime is 85078344347917. The reversal of 85078344347841 is 14874344387058.

It is not a de Polignac number, because 85078344347841 - 2⁹ = 85078344347329 is a prime.

It is a super-2 number, since 2×85078344347841² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85078344347141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55470876 + ... + 56983986.

It is an arithmetic number, because the mean of its divisors is an integer number (7635246373160).

Almost surely, 2^{85078344347841} is an apocalyptic number.

It is an amenable number.

85078344347841 is a deficient number, since it is larger than the sum of its proper divisors (37085597622719).

85078344347841 is a wasteful number, since it uses less digits than its factorization.

85078344347841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2954856.

The product of its (nonzero) digits is 289013760, while the sum is 66.

The spelling of 85078344347841 in words is "eighty-five trillion, seventy-eight billion, three hundred forty-four million, three hundred forty-seven thousand, eight hundred forty-one".