84473164129 has 2 divisors, whose sum is σ = 84473164130. Its totient is φ = 84473164128.

The previous prime is 84473164103. The next prime is 84473164151. The reversal of 84473164129 is 92146137448.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61119211729 + 23353952400 = 247223^2 + 152820^2 .

It is a cyclic number.

It is not a de Polignac number, because 84473164129 - 2²⁷ = 84338946401 is a prime.

It is not a weakly prime, because it can be changed into another prime (84473164159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42236582064 + 42236582065.

It is an arithmetic number, because the mean of its divisors is an integer number (42236582065).

Almost surely, 2^84473164129 is an apocalyptic number.

It is an amenable number.

84473164129 is a deficient number, since it is larger than the sum of its proper divisors (1).

84473164129 is an equidigital number, since it uses as much as digits as its factorization.

84473164129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1161216, while the sum is 49.

The spelling of 84473164129 in words is "eighty-four billion, four hundred seventy-three million, one hundred sixty-four thousand, one hundred twenty-nine".