84813599871 has 48 divisors (see below), whose sum is σ = 164486999040. Its totient is φ = 40669853760.

The previous prime is 84813599869. The next prime is 84813599881. The reversal of 84813599871 is 17899531848.

It is not a de Polignac number, because 84813599871 - 2¹ = 84813599869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 84813599799 and 84813599808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84813599821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4698151 + ... + 4716168.

It is an arithmetic number, because the mean of its divisors is an integer number (3426812480).

Almost surely, 2^84813599871 is an apocalyptic number.

84813599871 is a deficient number, since it is larger than the sum of its proper divisors (79673399169).

84813599871 is a wasteful number, since it uses less digits than its factorization.

84813599871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9414356 (or 9414353 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 63.

The spelling of 84813599871 in words is "eighty-four billion, eight hundred thirteen million, five hundred ninety-nine thousand, eight hundred seventy-one".