682494539149 has 4 divisors (see below), whose sum is σ = 722641276764. Its totient is φ = 642347801536.

The previous prime is 682494539147. The next prime is 682494539203. The reversal of 682494539149 is 941935494286.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 379064325124 + 303430214025 = 615682^2 + 550845^2 .

It is a cyclic number.

It is not a de Polignac number, because 682494539149 - 2¹ = 682494539147 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 (682494539147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20073368782 + ... + 20073368815.

It is an arithmetic number, because the mean of its divisors is an integer number (180660319191).

Almost surely, 2^682494539149 is an apocalyptic number.

It is an amenable number.

682494539149 is a deficient number, since it is larger than the sum of its proper divisors (40146737615).

682494539149 is a wasteful number, since it uses less digits than its factorization.

682494539149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40146737614.

The product of its digits is 67184640, while the sum is 64.

The spelling of 682494539149 in words is "six hundred eighty-two billion, four hundred ninety-four million, five hundred thirty-nine thousand, one hundred forty-nine".