84180303873 has 6 divisors (see below), whose sum is σ = 121593772274. Its totient is φ = 56120202576.

The previous prime is 84180303847. The next prime is 84180303881. The reversal of 84180303873 is 37830308148.

It can be written as a sum of positive squares in only one way, i.e., 78203003904 + 5977299969 = 279648^2 + 77313^2 .

It is not a de Polignac number, because 84180303873 - 2²⁰ = 84179255297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84180303773) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4676683540 + ... + 4676683557.

Almost surely, 2^84180303873 is an apocalyptic number.

It is an amenable number.

84180303873 is a deficient number, since it is larger than the sum of its proper divisors (37413468401).

84180303873 is a wasteful number, since it uses less digits than its factorization.

84180303873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9353367103 (or 9353367100 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 84180303873 in words is "eighty-four billion, one hundred eighty million, three hundred three thousand, eight hundred seventy-three".