84667543613 has 2 divisors, whose sum is σ = 84667543614. Its totient is φ = 84667543612.

The previous prime is 84667543607. The next prime is 84667543657. The reversal of 84667543613 is 31634576648.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60450581689 + 24216961924 = 245867^2 + 155618^2 .

It is a cyclic number.

It is not a de Polignac number, because 84667543613 - 2¹⁸ = 84667281469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84667543663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42333771806 + 42333771807.

It is an arithmetic number, because the mean of its divisors is an integer number (42333771807).

Almost surely, 2^84667543613 is an apocalyptic number.

It is an amenable number.

84667543613 is a deficient number, since it is larger than the sum of its proper divisors (1).

84667543613 is an equidigital number, since it uses as much as digits as its factorization.

84667543613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8709120, while the sum is 53.

The spelling of 84667543613 in words is "eighty-four billion, six hundred sixty-seven million, five hundred forty-three thousand, six hundred thirteen".