84866528713 has 2 divisors, whose sum is σ = 84866528714. Its totient is φ = 84866528712.

The previous prime is 84866528683. The next prime is 84866528731. The reversal of 84866528713 is 31782566848.

It is a happy number.

Together with next prime (84866528731) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54302048784 + 30564479929 = 233028^2 + 174827^2 .

It is a cyclic number.

It is not a de Polignac number, because 84866528713 - 2¹⁷ = 84866397641 is a prime.

It is not a weakly prime, because it can be changed into another prime (84866528753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42433264356 + 42433264357.

It is an arithmetic number, because the mean of its divisors is an integer number (42433264357).

Almost surely, 2^84866528713 is an apocalyptic number.

It is an amenable number.

84866528713 is a deficient number, since it is larger than the sum of its proper divisors (1).

84866528713 is an equidigital number, since it uses as much as digits as its factorization.

84866528713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15482880, while the sum is 58.

The spelling of 84866528713 in words is "eighty-four billion, eight hundred sixty-six million, five hundred twenty-eight thousand, seven hundred thirteen".