673506494842 has 8 divisors (see below), whose sum is σ = 1029321246996. Its totient is φ = 330399412512.

The previous prime is 673506494833. The next prime is 673506494849. The reversal of 673506494842 is 248494605376.

It can be written as a sum of positive squares in 2 ways, for example, as 649892333281 + 23614161561 = 806159^2 + 153669^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×673506494842² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (673506494849) 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 in 3 ways as a sum of consecutive naturals, for example, 3176917323 + ... + 3176917534.

Almost surely, 2^673506494842 is an apocalyptic number.

673506494842 is a deficient number, since it is larger than the sum of its proper divisors (355814752154).

673506494842 is a wasteful number, since it uses less digits than its factorization.

673506494842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6353834912.

The product of its (nonzero) digits is 34836480, while the sum is 58.

The spelling of 673506494842 in words is "six hundred seventy-three billion, five hundred six million, four hundred ninety-four thousand, eight hundred forty-two".