84353634481 has 2 divisors, whose sum is σ = 84353634482. Its totient is φ = 84353634480.

The previous prime is 84353634433. The next prime is 84353634523. The reversal of 84353634481 is 18443635348.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75831390625 + 8522243856 = 275375^2 + 92316^2 .

It is a cyclic number.

It is not a de Polignac number, because 84353634481 - 2⁷ = 84353634353 is a prime.

It is a super-2 number, since 2×84353634481² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (84353634581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42176817240 + 42176817241.

It is an arithmetic number, because the mean of its divisors is an integer number (42176817241).

Almost surely, 2^84353634481 is an apocalyptic number.

It is an amenable number.

84353634481 is a deficient number, since it is larger than the sum of its proper divisors (1).

84353634481 is an equidigital number, since it uses as much as digits as its factorization.

84353634481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3317760, while the sum is 49.

The spelling of 84353634481 in words is "eighty-four billion, three hundred fifty-three million, six hundred thirty-four thousand, four hundred eighty-one".