673408074536 has 16 divisors (see below), whose sum is σ = 1262952040500. Its totient is φ = 336620863744.

The previous prime is 673408074529. The next prime is 673408074539. The reversal of 673408074536 is 635470804376.

673408074536 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 654794929636 + 18613144900 = 809194^2 + 136430^2 .

It is not an unprimeable number, because it can be changed into a prime (673408074539) 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, 10362275 + ... + 10427058.

Almost surely, 2^673408074536 is an apocalyptic number.

It is an amenable number.

673408074536 is a deficient number, since it is larger than the sum of its proper divisors (589543965964).

673408074536 is a wasteful number, since it uses less digits than its factorization.

673408074536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20793388 (or 20793384 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 53.

The spelling of 673408074536 in words is "six hundred seventy-three billion, four hundred eight million, seventy-four thousand, five hundred thirty-six".