84004663579 has 2 divisors, whose sum is σ = 84004663580. Its totient is φ = 84004663578.

The previous prime is 84004663541. The next prime is 84004663597. The reversal of 84004663579 is 97536640048.

Together with next prime (84004663597) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84004663579 - 2⁷ = 84004663451 is a prime.

It is not a weakly prime, because it can be changed into another prime (84004663279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42002331789 + 42002331790.

It is an arithmetic number, because the mean of its divisors is an integer number (42002331790).

Almost surely, 2^84004663579 is an apocalyptic number.

84004663579 is a deficient number, since it is larger than the sum of its proper divisors (1).

84004663579 is an equidigital number, since it uses as much as digits as its factorization.

84004663579 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 84004663579 in words is "eighty-four billion, four million, six hundred sixty-three thousand, five hundred seventy-nine".