84004663177 has 2 divisors, whose sum is σ = 84004663178. Its totient is φ = 84004663176.

The previous prime is 84004663163. The next prime is 84004663189. The reversal of 84004663177 is 77136640048.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77704907536 + 6299755641 = 278756^2 + 79371^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84004663177 is a prime.

It is not a weakly prime, because it can be changed into another prime (84005663177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42002331588 + 42002331589.

It is an arithmetic number, because the mean of its divisors is an integer number (42002331589).

Almost surely, 2^84004663177 is an apocalyptic number.

It is an amenable number.

84004663177 is a deficient number, since it is larger than the sum of its proper divisors (1).

84004663177 is an equidigital number, since it uses as much as digits as its factorization.

84004663177 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 677376, while the sum is 46.

The spelling of 84004663177 in words is "eighty-four billion, four million, six hundred sixty-three thousand, one hundred seventy-seven".