84214565187 has 16 divisors (see below), whose sum is σ = 116014989312. Its totient is φ = 54281928960.

The previous prime is 84214565179. The next prime is 84214565189. The reversal of 84214565187 is 78156541248.

It is a happy number.

It is not a de Polignac number, because 84214565187 - 2³ = 84214565179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84214565189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315438 + ... + 517619.

It is an arithmetic number, because the mean of its divisors is an integer number (7250936832).

Almost surely, 2^84214565187 is an apocalyptic number.

84214565187 is a deficient number, since it is larger than the sum of its proper divisors (31800424125).

84214565187 is a wasteful number, since it uses less digits than its factorization.

84214565187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834178.

The product of its digits is 2150400, while the sum is 51.

The spelling of 84214565187 in words is "eighty-four billion, two hundred fourteen million, five hundred sixty-five thousand, one hundred eighty-seven".