42723383621 has 8 divisors (see below), whose sum is σ = 45366894720. Its totient is φ = 40094358208.

The previous prime is 42723383611. The next prime is 42723383671. The reversal of 42723383621 is 12638332724.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42723383621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42723383611) 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, 3615341 + ... + 3627138.

It is an arithmetic number, because the mean of its divisors is an integer number (5670861840).

Almost surely, 2^42723383621 is an apocalyptic number.

It is an amenable number.

42723383621 is a deficient number, since it is larger than the sum of its proper divisors (2643511099).

42723383621 is a wasteful number, since it uses less digits than its factorization.

42723383621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7242843.

The product of its digits is 290304, while the sum is 41.

The spelling of 42723383621 in words is "forty-two billion, seven hundred twenty-three million, three hundred eighty-three thousand, six hundred twenty-one".