84457133175447 has 12 divisors (see below), whose sum is σ = 126511919654120. Its totient is φ = 56304755450136.

The previous prime is 84457133175413. The next prime is 84457133175479. The reversal of 84457133175447 is 74457133175448.

84457133175447 is a `hidden beast` number, since 8 + 4 + 4 + 5 + 7 + 13 + 3 + 175 + 447 = 666.

It is not a de Polignac number, because 84457133175447 - 2⁷ = 84457133175319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84457133175487) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 173780109172 + ... + 173780109657.

Almost surely, 2^{84457133175447} is an apocalyptic number.

84457133175447 is a deficient number, since it is larger than the sum of its proper divisors (42054786478673).

84457133175447 is an equidigital number, since it uses as much as digits as its factorization.

84457133175447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347560218844 (or 347560218832 counting only the distinct ones).

The product of its digits is 158054400, while the sum is 63.

Subtracting from 84457133175447 its reverse (74457133175448), we obtain a palindrome (9999999999999).

The spelling of 84457133175447 in words is "eighty-four trillion, four hundred fifty-seven billion, one hundred thirty-three million, one hundred seventy-five thousand, four hundred forty-seven".