673707040668 has 36 divisors (see below), whose sum is σ = 1705305056728. Its totient is φ = 224262635040.

The previous prime is 673707040667. The next prime is 673707040703. The reversal of 673707040668 is 866040707376.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673707040661) 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, 12739018 + ... + 12791793.

Almost surely, 2^673707040668 is an apocalyptic number.

It is an amenable number.

673707040668 is an abundant number, since it is smaller than the sum of its proper divisors (1031598016060).

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

673707040668 is a wasteful number, since it uses less digits than its factorization.

673707040668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25531554 (or 25531549 counting only the distinct ones).

The product of its (nonzero) digits is 7112448, while the sum is 54.

The spelling of 673707040668 in words is "six hundred seventy-three billion, seven hundred seven million, forty thousand, six hundred sixty-eight".