85640356017883 has 4 divisors (see below), whose sum is σ = 85640474841448. Its totient is φ = 85640237194320.

The previous prime is 85640356017869. The next prime is 85640356017899. The reversal of 85640356017883 is 38871065304658.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85640356017883 - 2³³ = 85631766083291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85640356014883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58324041 + ... + 59774362.

It is an arithmetic number, because the mean of its divisors is an integer number (21410118710362).

Almost surely, 2^{85640356017883} is an apocalyptic number.

85640356017883 is a deficient number, since it is larger than the sum of its proper divisors (118823565).

85640356017883 is a wasteful number, since it uses less digits than its factorization.

85640356017883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118823564.

The product of its (nonzero) digits is 116121600, while the sum is 64.

The spelling of 85640356017883 in words is "eighty-five trillion, six hundred forty billion, three hundred fifty-six million, seventeen thousand, eight hundred eighty-three".