84616161389 has 2 divisors, whose sum is σ = 84616161390. Its totient is φ = 84616161388.

The previous prime is 84616161353. The next prime is 84616161419. The reversal of 84616161389 is 98316161648.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77594559364 + 7021602025 = 278558^2 + 83795^2 .

It is a cyclic number.

It is not a de Polignac number, because 84616161389 - 2¹⁶ = 84616095853 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84616161389.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84616161319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42308080694 + 42308080695.

It is an arithmetic number, because the mean of its divisors is an integer number (42308080695).

Almost surely, 2^84616161389 is an apocalyptic number.

It is an amenable number.

84616161389 is a deficient number, since it is larger than the sum of its proper divisors (1).

84616161389 is an equidigital number, since it uses as much as digits as its factorization.

84616161389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1492992, while the sum is 53.

The spelling of 84616161389 in words is "eighty-four billion, six hundred sixteen million, one hundred sixty-one thousand, three hundred eighty-nine".