42731760805 has 8 divisors (see below), whose sum is σ = 51283147032. Its totient is φ = 34182052608.

The previous prime is 42731760787. The next prime is 42731760821. The reversal of 42731760805 is 50806713724.

42731760805 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 4 ways, for example, as 508908481 + 42222852324 = 22559^2 + 205482^2 .

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 42731760805 - 2⁹ = 42731760293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362784 + ... + 465913.

It is an arithmetic number, because the mean of its divisors is an integer number (6410393379).

Almost surely, 2^42731760805 is an apocalyptic number.

It is an amenable number.

42731760805 is a deficient number, since it is larger than the sum of its proper divisors (8551386227).

42731760805 is a wasteful number, since it uses less digits than its factorization.

42731760805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839015.

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 42731760805 in words is "forty-two billion, seven hundred thirty-one million, seven hundred sixty thousand, eight hundred five".