673604865340 has 24 divisors (see below), whose sum is σ = 1543167510192. Its totient is φ = 244947223680.

The previous prime is 673604865313. The next prime is 673604865341. The reversal of 673604865340 is 43568406376.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673604865341) 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 7 ways as a sum of consecutive naturals, for example, 1530919929 + ... + 1530920368.

It is an arithmetic number, because the mean of its divisors is an integer number (64298646258).

Almost surely, 2^673604865340 is an apocalyptic number.

It is an amenable number.

673604865340 is an abundant number, since it is smaller than the sum of its proper divisors (869562644852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

673604865340 is a wasteful number, since it uses less digits than its factorization.

673604865340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3061840317 (or 3061840315 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 52.

The spelling of 673604865340 in words is "six hundred seventy-three billion, six hundred four million, eight hundred sixty-five thousand, three hundred forty".