84842432887 has 4 divisors (see below), whose sum is σ = 84941897320. Its totient is φ = 84742968456.

The previous prime is 84842432881. The next prime is 84842432891. The reversal of 84842432887 is 78823424848.

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 84842432887 - 2³ = 84842432879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84842432881) 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, 49730937 + ... + 49732642.

It is an arithmetic number, because the mean of its divisors is an integer number (21235474330).

Almost surely, 2^84842432887 is an apocalyptic number.

84842432887 is a deficient number, since it is larger than the sum of its proper divisors (99464433).

84842432887 is an equidigital number, since it uses as much as digits as its factorization.

84842432887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99464432.

The product of its digits is 22020096, while the sum is 58.

The spelling of 84842432887 in words is "eighty-four billion, eight hundred forty-two million, four hundred thirty-two thousand, eight hundred eighty-seven".