84395999953 has 2 divisors, whose sum is σ = 84395999954. Its totient is φ = 84395999952.

The previous prime is 84395999929. The next prime is 84396000019. The reversal of 84395999953 is 35999959348.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52389716544 + 32006283409 = 228888^2 + 178903^2 .

It is a cyclic number.

It is not a de Polignac number, because 84395999953 - 2¹⁷ = 84395868881 is a prime.

It is not a weakly prime, because it can be changed into another prime (84395909953) 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, 42197999976 + 42197999977.

It is an arithmetic number, because the mean of its divisors is an integer number (42197999977).

Almost surely, 2^84395999953 is an apocalyptic number.

It is an amenable number.

84395999953 is a deficient number, since it is larger than the sum of its proper divisors (1).

84395999953 is an equidigital number, since it uses as much as digits as its factorization.

84395999953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 425152800, while the sum is 73.

The spelling of 84395999953 in words is "eighty-four billion, three hundred ninety-five million, nine hundred ninety-nine thousand, nine hundred fifty-three".