84594249549 has 12 divisors (see below), whose sum is σ = 122463841500. Its totient is φ = 56270559744.

The previous prime is 84594249517. The next prime is 84594249563. The reversal of 84594249549 is 94594249548.

84594249549 is a `hidden beast` number, since 8 + 4 + 5 + 9 + 42 + 49 + 549 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 74683051524 + 9911198025 = 273282^2 + 99555^2 .

It is not a de Polignac number, because 84594249549 - 2⁵ = 84594249517 is a prime.

It is a super-3 number, since 3×84594249549³ (a number of 34 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84594249569) 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, 10462954 + ... + 10471035.

It is an arithmetic number, because the mean of its divisors is an integer number (10205320125).

Almost surely, 2^84594249549 is an apocalyptic number.

It is an amenable number.

84594249549 is a deficient number, since it is larger than the sum of its proper divisors (37869591951).

84594249549 is a wasteful number, since it uses less digits than its factorization.

84594249549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20934444 (or 20934441 counting only the distinct ones).

The product of its digits is 74649600, while the sum is 63.

Subtracting 84594249549 from its reverse (94594249548), we obtain a palindrome (9999999999).

The spelling of 84594249549 in words is "eighty-four billion, five hundred ninety-four million, two hundred forty-nine thousand, five hundred forty-nine".