84538807871 has 8 divisors (see below), whose sum is σ = 96624281760. Its totient is φ = 72455459328.

The previous prime is 84538807849. The next prime is 84538807883. The reversal of 84538807871 is 17870883548.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-84538807871 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84538807871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84538807811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 445166 + ... + 606011.

It is an arithmetic number, because the mean of its divisors is an integer number (12078035220).

Almost surely, 2^84538807871 is an apocalyptic number.

84538807871 is a deficient number, since it is larger than the sum of its proper divisors (12085473889).

84538807871 is a wasteful number, since it uses less digits than its factorization.

84538807871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062673.

The product of its (nonzero) digits is 12042240, while the sum is 59.

The spelling of 84538807871 in words is "eighty-four billion, five hundred thirty-eight million, eight hundred seven thousand, eight hundred seventy-one".