673835386648 has 16 divisors (see below), whose sum is σ = 1263455956080. Its totient is φ = 336913798368.

The previous prime is 673835386643. The next prime is 673835386649. The reversal of 673835386648 is 846683538376.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673835386643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328765 + ... + 1206547.

It is an arithmetic number, because the mean of its divisors is an integer number (78965997255).

Almost surely, 2^673835386648 is an apocalyptic number.

It is an amenable number.

673835386648 is a deficient number, since it is larger than the sum of its proper divisors (589620569432).

673835386648 is a wasteful number, since it uses less digits than its factorization.

673835386648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973746 (or 973742 counting only the distinct ones).

The product of its digits is 418037760, while the sum is 67.

The spelling of 673835386648 in words is "six hundred seventy-three billion, eight hundred thirty-five million, three hundred eighty-six thousand, six hundred forty-eight".