673632378564 has 24 divisors (see below), whose sum is σ = 1574486598048. Its totient is φ = 224161595520.

The previous prime is 673632378491. The next prime is 673632378581. The reversal of 673632378564 is 465873236376.

It is a junction number, because it is equal to n+sod(n) for n = 673632378498 and 673632378507.

It is an unprimeable number.

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, 47808997 + ... + 47823084.

It is an arithmetic number, because the mean of its divisors is an integer number (65603608252).

Almost surely, 2^673632378564 is an apocalyptic number.

It is an amenable number.

673632378564 is an abundant number, since it is smaller than the sum of its proper divisors (900854219484).

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

673632378564 is a wasteful number, since it uses less digits than its factorization.

673632378564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95632675 (or 95632673 counting only the distinct ones).

The product of its digits is 91445760, while the sum is 60.

The spelling of 673632378564 in words is "six hundred seventy-three billion, six hundred thirty-two million, three hundred seventy-eight thousand, five hundred sixty-four".