42820481218 has 8 divisors (see below), whose sum is σ = 64231630848. Its totient is φ = 21409937604.

The previous prime is 42820481213. The next prime is 42820481233. The reversal of 42820481218 is 81218402824.

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

It is a super-2 number, since 2×42820481218² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42820481213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129055 + ... + 319837.

It is an arithmetic number, because the mean of its divisors is an integer number (8028953856).

Almost surely, 2^42820481218 is an apocalyptic number.

42820481218 is a deficient number, since it is larger than the sum of its proper divisors (21411149630).

42820481218 is a wasteful number, since it uses less digits than its factorization.

42820481218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303008.

The product of its (nonzero) digits is 65536, while the sum is 40.

The spelling of 42820481218 in words is "forty-two billion, eight hundred twenty million, four hundred eighty-one thousand, two hundred eighteen".