42581683280 has 30 divisors (see below), whose sum is σ = 99006705018. Its totient is φ = 17031935040.

The previous prime is 42581683247. The next prime is 42581683301. The reversal of 42581683280 is 8238618524.

It can be written as a sum of positive squares in only one way, i.e., 34065346624 + 8516336656 = 184568^2 + 92284^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1834145 + ... + 1857215.

Almost surely, 2^42581683280 is an apocalyptic number.

42581683280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42581683280 is an abundant number, since it is smaller than the sum of its proper divisors (56425021738).

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

42581683280 is an frugal number, since it uses more digits than its factorization.

42581683280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46155 (or 23078 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 47.

The spelling of 42581683280 in words is "forty-two billion, five hundred eighty-one million, six hundred eighty-three thousand, two hundred eighty".