85840885372805 has 16 divisors (see below), whose sum is σ = 103059578947584. Its totient is φ = 68639032091520.

The previous prime is 85840885372777. The next prime is 85840885372943. The reversal of 85840885372805 is 50827358804858.

It is not a de Polignac number, because 85840885372805 - 2¹⁰ = 85840885371781 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 856790744 + ... + 856890926.

It is an arithmetic number, because the mean of its divisors is an integer number (6441223684224).

Almost surely, 2^{85840885372805} is an apocalyptic number.

It is an amenable number.

85840885372805 is a deficient number, since it is larger than the sum of its proper divisors (17218693574779).

85840885372805 is a wasteful number, since it uses less digits than its factorization.

85840885372805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182516.

The product of its (nonzero) digits is 688128000, while the sum is 71.

The spelling of 85840885372805 in words is "eighty-five trillion, eight hundred forty billion, eight hundred eighty-five million, three hundred seventy-two thousand, eight hundred five".