642067324673 has 8 divisors (see below), whose sum is σ = 666747916800. Its totient is φ = 617634779040.

The previous prime is 642067324643. The next prime is 642067324681. The reversal of 642067324673 is 376423760246.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 642067324673 - 2²² = 642063130369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (642067324603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62006348 + ... + 62016701.

It is an arithmetic number, because the mean of its divisors is an integer number (83343489600).

Almost surely, 2^642067324673 is an apocalyptic number.

It is an amenable number.

642067324673 is a deficient number, since it is larger than the sum of its proper divisors (24680592127).

642067324673 is a wasteful number, since it uses less digits than its factorization.

642067324673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124023247.

The product of its (nonzero) digits is 6096384, while the sum is 50.

The spelling of 642067324673 in words is "six hundred forty-two billion, sixty-seven million, three hundred twenty-four thousand, six hundred seventy-three".