84668002589 has 2 divisors, whose sum is σ = 84668002590. Its totient is φ = 84668002588.

The previous prime is 84668002547. The next prime is 84668002603. The reversal of 84668002589 is 98520086648.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82179688900 + 2488313689 = 286670^2 + 49883^2 .

It is a cyclic number.

It is not a de Polignac number, because 84668002589 - 2²⁰ = 84666954013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84668202589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42334001294 + 42334001295.

It is an arithmetic number, because the mean of its divisors is an integer number (42334001295).

Almost surely, 2^84668002589 is an apocalyptic number.

It is an amenable number.

84668002589 is a deficient number, since it is larger than the sum of its proper divisors (1).

84668002589 is an equidigital number, since it uses as much as digits as its factorization.

84668002589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6635520, while the sum is 56.

The spelling of 84668002589 in words is "eighty-four billion, six hundred sixty-eight million, two thousand, five hundred eighty-nine".