42668141765 has 8 divisors (see below), whose sum is σ = 51326960280. Its totient is φ = 34051053312.

The previous prime is 42668141743. The next prime is 42668141807. The reversal of 42668141765 is 56714186624.

It can be written as a sum of positive squares in 4 ways, for example, as 8783063524 + 33885078241 = 93718^2 + 184079^2 .

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 42668141765 - 2¹² = 42668137669 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10430264 + ... + 10434353.

It is an arithmetic number, because the mean of its divisors is an integer number (6415870035).

Almost surely, 2^42668141765 is an apocalyptic number.

It is an amenable number.

42668141765 is a deficient number, since it is larger than the sum of its proper divisors (8658818515).

42668141765 is a wasteful number, since it uses less digits than its factorization.

42668141765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20865031.

The product of its digits is 1935360, while the sum is 50.

The spelling of 42668141765 in words is "forty-two billion, six hundred sixty-eight million, one hundred forty-one thousand, seven hundred sixty-five".