84786034673 has 2 divisors, whose sum is σ = 84786034674. Its totient is φ = 84786034672.

The previous prime is 84786034639. The next prime is 84786034679. The reversal of 84786034673 is 37643068748.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82146438544 + 2639596129 = 286612^2 + 51377^2 .

It is a cyclic number.

It is not a de Polignac number, because 84786034673 - 2¹⁰ = 84786033649 is a prime.

It is not a weakly prime, because it can be changed into another prime (84786034679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42393017336 + 42393017337.

It is an arithmetic number, because the mean of its divisors is an integer number (42393017337).

Almost surely, 2^84786034673 is an apocalyptic number.

It is an amenable number.

84786034673 is a deficient number, since it is larger than the sum of its proper divisors (1).

84786034673 is an equidigital number, since it uses as much as digits as its factorization.

84786034673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16257024, while the sum is 56.

The spelling of 84786034673 in words is "eighty-four billion, seven hundred eighty-six million, thirty-four thousand, six hundred seventy-three".