84188280849 has 4 divisors (see below), whose sum is σ = 112251041136. Its totient is φ = 56125520564.

The previous prime is 84188280797. The next prime is 84188280929. The reversal of 84188280849 is 94808288148.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 84188280849 - 2²⁹ = 83651409937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84188280792 and 84188280801.

It is not an unprimeable number, because it can be changed into a prime (84188980849) 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, 14031380139 + ... + 14031380144.

It is an arithmetic number, because the mean of its divisors is an integer number (28062760284).

Almost surely, 2^84188280849 is an apocalyptic number.

It is an amenable number.

84188280849 is a deficient number, since it is larger than the sum of its proper divisors (28062760287).

84188280849 is a wasteful number, since it uses less digits than its factorization.

84188280849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28062760286.

The product of its (nonzero) digits is 9437184, while the sum is 60.

The spelling of 84188280849 in words is "eighty-four billion, one hundred eighty-eight million, two hundred eighty thousand, eight hundred forty-nine".